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250-824 Data Protection Troubleshooting for UNIX using NetBackup 5.x

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250-824 exam Dumps Source : Data Protection Troubleshooting for UNIX using NetBackup 5.x

Test Code : 250-824
Test Name : Data Protection Troubleshooting for UNIX using NetBackup 5.x
Vendor Name : Symantec
Q&A : 128 Real Questions

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Symantec Data Protection Troubleshooting for

Symantec Backup Exec troubleshooting performance assistance | killexams.com Real Questions and Pass4sure dumps

Symantec Corp.'s Backup Exec is a well-liked facts backup application for computing device and networked storage methods. besides the fact that children, as with all application, there are things that may also be set incorrectly or things that may go incorrect to be able to sluggish performance. in the case of a backup software, a slipup can tremendously boost the time it takes to complete your backup jobs. if you're the usage of Backup Exec and your efficiency is never what it'll be, some troubleshooting could be in order. here's a list of knowledge things to look out for.

Get a baseline: examine historical backup logs

delivery with the aid of your historical backup job logs and notice each the entire time required to back up, the measurement of the backups, and the overall speed. (Go to the "job video display" tab in Backup Exec and select "job historical past.") compare this to the current speed and complete time it takes to comprehensive the job. If there may be a significant slowdown, you are going to need to appear extra carefully for viable reasons.

smash the process down and examine the pace of each disk or agent being backed up. To do that, deploy separate jobs for each and every disk or agent being backed up and returned them up one by one. If one disk or agent seems strangely slow, drill down to determine the trigger through inspecting the job in element.

examine that the facts is not being redirected in different places. Some file methods allow a directory to include facts from a file on a further server within the backup. this may slow down the entire backup process.

if you are backing up over a network, you can look at various the system throughput by way of comparing the Backup Exec logs with the logs of home windows backup (NTBackup) If the Backup Exec logs reflect a lot of situations that don't exhibit up within the NTBackup logs, extra evaluation is referred to as for. If far flung backups don't seem to be working, are attempting backing up from one pressure to one more on the far flung server. compare the logs of the Backup Exec backup and the home windows backup. (This assumes you are inspecting a power in preference to an agent for a software like Microsoft trade.)

assess for disk fragmentation

be sure you additionally check that there don't seem to be a lot of small data or directories on the disk. this could slow down backups in tons the equal means fragmentation does with the aid of requiring loads of reads to get the guidance off the disk for backup.

Disk fragmentation can slow efficiency of Backup Exec enormously. examine to look how fragmented your disks are and defragment if indispensable.

flip compression on

tell the Backup Exec to compress any info which can be compressed. Some files, like mpegs and jpegs, can not be compressed. in case you suspect the difficulty may well be within the compression, try switching from hardware to utility compression, or vice versa.

make certain your backup application isn't moving into the manner

Antivirus software can be a specific issue in Backup Exec. Checking each file being backed up for viruses is mindless and slows backup efficiency. For greater on the interaction between Backup Exec and Norton Antivirus, see Symantec's Backup Exec discussion board. also, the more moderen models of Backup Exec have a function known as Tamper insurance policy that can cause problems with antivirus software.

Tape backup with Backup Exec

if you're backing as much as tape, energy cycle the tape power or library and the server. This should resolve transient issues. This re-initializes the tape gadget and resets the tape device's state. This may additionally remedy every little thing from a problem caused through an influence glitch to a couple incorrectly set parameters.

The SCSI part (controllers, cables, terminators, and many others.) of your backup equipment can sap efficiency if the parameters are set incorrectly when backing up to tape. check the documentation and compare the values there with your settings. The determine option may still offer you a great general image of the circumstance of the SCSI device. they could do the equal component when backing as much as disk, but as a result of the random write nature of disk, it doesn't have the difficulty to the equal degree tape does. Tape needs statistics fed at a pleasant even velocity that fits the speed of the tape unit for highest quality performance. Disk can deal with intermittent slowdowns within the facts fee improved than tape can because it writes randomly.

Use the 'determine' choice to assess the fitness of the SCSI system

The verify operation is generally limited with the aid of the pace of the SCSI gadget. investigate the performance by using analyzing the logs of jobs with assess operations in them. If the determine speeds are low, verify the SCSI subsystem for viable bottlenecks.

make sure your controller is rated for the speed of your tape drive. as an example, an LTO-3 tape power requires a SCSI 320 network. determine that your tape drives are not linked to a SCSI RAID controller.

among the different feasible complications with SCSI are mistaken cabling, unfastened or unhealthy termination and flawed SCSI BIOS settings. additionally be certain the "provoke broad negotiation" option is decided to "sure" when you are using a 68-pin cable connector to your tape power.

if you are backing up to disk, examine the Backup to Disk (B2D) folder. The B2D folder's main use is to steer clear of the lack of data if a tool fails, but it surely offers a benchmark for Backup Exec in opposition t yet another machine. You want at the least 2 Gb of information to permit for caches and such. It tends to eliminate issues with the application and the server being backed up as viable explanations. look at various the B2D speed via copying at the least 2 Gb of facts to the B2D disk by means of dragging and shedding the file(s). compare that with the pace of backing up the equal records. If the velocity is concerning the identical, the issue is definitely within the disk subsystem, together with the controller.

See Symantec's troubleshooting tip document for extra Backup Exec troubleshooting counsel.

About this creator:Rick cook dinner focuses on writing about concerns involving statistics storage and records storage management.


Symantec and Norton security solutions Win Six AV-look at various Institute finest insurance policy and ideal performance Awards | killexams.com Real Questions and Pass4sure dumps

Symantec Corp. (NASDAQ: SYMC), the world's main cyber security enterprise, today announced that Symantec and Norton protection solutions received six AV-check awards, together with the coveted optimum coverage award for Norton protection, Symantec Endpoint insurance policy, and Symantec Endpoint protection Cloud, ultimate Android coverage for Norton cell protection, and optimum efficiency awards for Norton protection and Symantec Endpoint insurance policy Cloud.

This marks Symantec’s fourth consecutive 12 months winning most suitable insurance policy awards for Norton safety and Symantec Endpoint protection, 2nd consecutive premier insurance policy wins for Symantec Endpoint insurance plan Cloud, and 2nd consecutive yr successful ideal Android insurance policy for Norton mobile safety, and inaugural highest quality efficiency wins for Norton security and Symantec Endpoint coverage Cloud. Symantec and Norton items chiefly performed 100% insurance plan rankings, blocking each attempted assault within the AV-verify Institute’s rigorous tests. additionally, Norton mobile protection for Android, which shares advanced protection expertise with Symantec Endpoint insurance policy cellular, bested all cellular protection rivals to be topped the only winner of AV-examine Institute’s Android protection Award.

AV-look at various Institute is globally identified for its rigorous unbiased testing strategies that evaluate the effectiveness of endpoint safety solution defenses towards advanced assaults all over the yr. The organization puts each protection solution to the test by offering more than 1,000 are living zero-day assaults by the use of infected sites and emails, and over 65,000 energetic and common threats. AV-look at various makes use of new attacks every month, ensuring attackers' attempts to dodge insurance policy are entirely validated. Symantec and Norton blocked each assault in each and every of AV-examine's six certification exams.

"It’s a massive fulfillment to win our prestigious AV-test awards for finest insurance policy, ideal performance, and premier Android protection,” pointed out Andreas Marx, CEO of AV-verify. "In 2018, Symantec successfully eradicated the tradeoff between security and performance, achieving premier insurance plan across all solutions validated while also reaching most appropriate efficiency. as soon as once again, Symantec was head and shoulders above the competition during this year’s testing, constantly offering ultimate insurance plan for buyers and firms alike.”

Symantec Endpoint coverage (SEP) is Symantec's flagship enterprise endpoint safety solution, providing unequalled protection to satisfy the advanced security requirements of the cloud technology in a single, effortless-to-use agent. This agent combines superior points together with advanced computing device discovering, zero-day exploit insurance plan, behavioral analysis, deception know-how, integrated endpoint detection and response, application isolation, and application control. SEP Cloud also presents foremost-in-classification coverage with an easy-to-use, security-as-a-carrier choice for groups with constrained IT protection materials.

Norton security, Symantec’s purchaser cyber safety solution, helps patrons offer protection to their own contraptions and private counsel from these days’s digital threats. Multi-layered protection technologies, with the addition of advanced computing device discovering, artificial intelligence and nil-day take advantage of coverage proactively establish attacks and prevent zero-day threats devoid of slowing down a computing device's performance. Norton mobile safety for Android offers proactive insurance plan for smartphones and capsules to shelter online privacy and give protection to own tips towards stealthy mobile cyber threats and online scams.

"The real-world tests used via AV-examine mirror the newest threats – that are continuously getting extra superior,” talked about Adam Bromwich, senior vp, Symantec security expertise and Response. "we're honored to be diagnosed for our resourceful desktop getting to know-based mostly coverage with AV-examine 2018 foremost coverage awards for all our business and customer security solutions that have been confirmed, and we are proud to be awarded premiere efficiency for providing top-rated-in-class insurance plan and performance. This achievement is the direct outcomes of our unparalleled, passionate group that works hard to build innovative expertise to give protection to our shoppers no remember the hazard.”

For greater assistance on AV-verify’s 2018 effects, visit AV-look at various.org.

About Symantec

Symantec supplier (NASDAQ: SYMC), the area's leading cyber security enterprise, helps corporations, governments and individuals comfy their most critical data at any place it lives. companies the world over seem to be to Symantec for strategic, built-in solutions to guard against sophisticated attacks throughout endpoints, cloud and infrastructure. Likewise, a world community of greater than 50 million individuals and families count on Symantec's Norton and LifeLock product suites to give protection to their digital lives at domestic and across their gadgets. Symantec operates one of the crucial world's greatest civilian cyber intelligence networks, allowing it to peer and offer protection to against probably the most superior threats. For additional information, please talk over with www.symantec.com or connect with us on facebook, Twitter, and LinkedIn.


Cloud Endpoint insurance policy market evaluation to 2027 just posted | killexams.com Real Questions and Pass4sure dumps

Key gamers – Commvault, Kaspersky Lab, McAfee, Palo Alto Networks, Panda security, Symantec service provider, Sophos

MARKET SCOPE The "international Cloud Endpoint protection Market evaluation to 2027" is a specialized and in-depth analyze of the expertise, media and telecommunication trade with a different center of attention on the international market vogue analysis. The file goals to deliver an outline of the cloud endpoint insurance policy market with certain market segmentation by means of answer, organization size, software, and geography.

The international cloud endpoint insurance plan market is expected to witness high growth during the forecast period. The file provides key facts in the marketplace popularity of the main cloud endpoint protection market players and offers key traits and opportunities in the market.

MARKET INTRODUCTIONThe cloud endpoint insurance plan correctly protects and manipulate electronic devices similar to cell phones, pills, computer, and servers from the single console. Cloud endpoint coverage is a suitable answer designed for organizations with a confined and regulated personnel.

With continuous advancements in on-premise based mostly cloud endpoint insurance policy and cloud-based endpoint insurance policy the electronics gadgets are a lot greater secured nowadays.

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MARKET DYNAMICS

The cloud endpoint coverage market is anticipated to develop rapidly in the forecast length because of, urge to handle cases regarding safety breaches taking locations in enterprises. additionally, to lessen endpoint assaults, demand for endpoint gadgets and connected utility is rising, which is answerable for driving the cloud endpoint coverage market.

moreover, demand for securing and maintaining significant information gathered in media & enjoyment industry by deploying advanced cloud endpoint protection within the IT infrastructure is expected to provide several opportunities to the players operating in the cloud endpoint insurance plan market.

MARKET SEGMENTATIONThe global cloud endpoint protection market is segmented on the groundwork of answer, company measurement, and application. based solution, the market is segmented into endpoint software manage, anti-spyware, firewall, endpoint machine handle, and others.

On the basis of corporation size, the cloud endpoint coverage market is segmented into SMEs and big organizations. The cloud endpoint insurance policy market on the foundation of the utility is classified into BFSI, IT & telecom, public sector, healthcare, and retail, and others.

REGIONAL FRAMEWORKThe file provides a detailed overview of the industry together with both qualitative and quantitative guidance. It offers a top level view and forecast of the world cloud endpoint coverage market according to a lot of segments.

It also gives market dimension and forecast estimates from the yr 2017 to 2027 with appreciate to 5 predominant regions, namely; North america, Europe, Asia-Pacific (APAC), center East and Africa (MEA) and South & relevant the usa. The cloud endpoint insurance policy market by using each region is later sub-segmented by using respective countries and segments.

The file covers the evaluation and forecast of 18 nations globally along with the existing style and alternatives prevailing in the area.

The file analyzes factors affecting the cloud endpoint protection market from each demand and supply facet and further evaluates market dynamics affecting the market throughout the forecast length i.e., drivers, restraints, opportunities, and future style. The report additionally gives exhaustive PEST evaluation for all five areas namely; North the us, Europe, APAC, MEA, and South & principal the united states after evaluating political, economic, social and technological components affecting the cloud endpoint coverage in these areas.

MARKET PLAYERSThe stories cowl key trends in the cloud endpoint insurance policy market as organic and inorganic growth thoughts. a lot of companies are focusing on organic growth concepts such as product launches, product approvals and others corresponding to patents and hobbies.

Inorganic boom options activities witnessed out there had been acquisitions, and partnership & collaborations. These activities have paved method for the enlargement of business and customer base of market gamers.

The market payers from Cloud endpoint coverage market are anticipated to lucrative growth opportunities sooner or later with the rising demand for cloud endpoint insurance plan within the global market. below mentioned is the checklist of few agencies engaged in the cloud endpoint insurance plan market.

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The report also contains the profiles of key groups together with their SWOT analysis and market techniques in the cloud endpoint protection market. in addition, the document makes a speciality of main trade avid gamers with assistance reminiscent of business profiles, items and functions offered, financial counsel of the final three years, the important thing building in the past 5 years.

  • Avast utility s.r.o
  • Commvault
  • Kaspersky Lab
  • McAfee, LLC
  • Palo Alto Networks, Inc.
  • Panda security
  • Symantec corporation
  • Sophos Ltd.
  • fashion Micro integrated
  • VIPRE protection
  • The insight companion's committed research and analysis crew consist of skilled gurus with advanced statistical knowledge and present a considerable number of customization alternate options within the current study.

    This electronic mail tackle is being blanketed from spambots. You want JavaScript enabled to view it.


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    Data Protection Troubleshooting for UNIX using NetBackup 5.x

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    Network Design Strategies | killexams.com real questions and Pass4sure dumps

    This chapter, from Upgrading and Repairing Networks, 5e, looks at the network's logical and physical design to assist your planning when creating a new network.

    This chapter is from the book 

    Many types of networks were discussed in Chapter 1, "A Short History of Computer Networking," from ARPANET to TCP/IP. And in Chapter 2, "Overview of Network Topologies," you learned about the various topologies you can employ when designing and creating a local area network (LAN), and we also looked at some scenarios in which several networks were connected to form a wide area network (WAN). In this chapter, we will look at another aspect of creating a network: the network's logical and physical design. The physical aspects of your LAN will depend on the underlying physical transport technology—Ethernet or Token-Ring, for example, or possibly ATM, which is supported as a LAN protocol in products such as Windows 2000/XP, Windows Server 2003, and Linux. Depending on which technology you use, there will be one or more LAN topologies from which to choose.

    Before you can begin to design a physical network, however, you first must determine your needs. What services must you provide to your user community? What are the resources you'll need? If you have to compromise, what will it take to satisfy the most users or to provide the more important services? You then will have to take into account network protocols, applications, network speed, and, most important, network security issues; each of these figures into a network's logical design. Another important factor your management will probably force you to consider is cost—you can't forget the budget. These factors make up the logical design for your network. You first should decide what you need and what it will take to provide for those needs.

    If you are creating a new network and purchasing new applications, you will probably spend most of your time considering the licensing and other financial costs (training users, network personnel, and so on). If you are upgrading older applications, several other factors come into consideration. Many applications that were coded using COBOL, BASIC, FORTRAN, and other languages that helped jumpstart the computer age may have built-in network functionality based on older proprietary network protocols. If this is the case with your network, you have to consider several things. What will it cost to update thousands of lines of code (or more) to more modern versions of the same programming language? What will it cost to upgrade these programs to newer object-oriented languages? To save money, can you upgrade part of your network and use gateway hardware/software to connect to older network components?

    Because of the costs associated with coding applications that were created many years ago, and the expenses that will be required to update them to modern programming languages, you may be forced to maintain legacy applications for a few years while replacement applications are designed and created. You may find a packaged application that can be used to replace older programs. This problem will apply mostly to proprietary computer architectures, instead of Windows or Unix platforms. If you can simply make minor changes and compile the source code so that it will run on a newer operating system, your costs will be much less than if you have to re-create the applications your users need from scratch. Another cost associated with upgrading to new programs is training users and help-desk personnel.

    When you plan a logical network design, you can start from one of two places. You can design and install a new network from scratch, or you can upgrade an existing network. Either way, you should gather information about several important factors before you begin the logical design. For example, depending on the services that will be provided to clients, you might need to analyze the possible traffic patterns that might result from your plan. Locate potential bottlenecks and, where possible, alleviate them by providing multiple paths to resources or by putting up servers that provide replicas of important data so that load balancing can be provided. The following are other factors to consider:

  • Who are the clients? What are their actual needs? How have you determined these needs—from user complaints or from help-desk statistics? Is this data reliable?
  • What kinds of services will you provide on the network? Are they limited in scope? Will any involve configuring a firewall between LANs? And if so, that still doesn't account for configuring a firewall to enable access to the Internet.
  • Will you need to allow an Internet connection for just your internal network's users, or will use you need to allow outside vendors access to your network? One example that comes to mind is the Internet Printing Protocol (see Chapter 24, "Overview of the TCP/IP Protocol Suite"). What will it cost to evaluate what kind of services user groups need to access from the Internet? Will you need to allow all users to use email—both within the internal network and through the firewall on the Internet? The same goes for what sites users will be allowed to access using a network browser and other network applications. Will you have users who work from home and require dial-in or VPN access through the Internet?
  • Can your users tolerate a little downtime now and then due to network problems, or is it necessary to provide a high-availability network? Will you need clustered servers to provide for a high degree of uptime, or do your users' applications not suffer from a temporary loss of the use of a server? To provide for maximum uptime, can you afford to build redundancy into your network? For example, Chapter 2 discusses redundant topologies that can be used to prevent a single point of failure from making the network (and its resources) unavailable. Chapter 11, "Network Attached Storage and Storage Area Networks," describes methods you can use to mirror data at geographically distant locations.
  • In an existing network, will you keep the current protocol or upgrade to a different protocol standard? If you create a network from scratch, what factors should affect your network protocol decision? Ethernet is the most popular LAN technology in the world today. TCP/IP is the most popular protocol suite that runs on Ethernet. Yet there are cases in which other technologies have their niches. Consider the implications (such as support costs and security) to maintain older, proprietary protocols.
  • Who Are Your Clients?

    This seems like a very simple question. However, I'm not saying, "What are your clients' names and how well do you know their children?" I am referring instead to your knowledge of the job descriptions for the users on the network. You need to assess work patterns for various departments so that you can appropriately place servers, high-bandwidth links, and other such things in the appropriate physical location of the network. If most of the network traffic you expect to see will come from the engineering department, you'll need to provide that department with a large data pipe. In Chapter 4, "Upgrading Strategies and Project Management," you'll find more information about surveying the user community to come up with a plan that places resources where they are needed.

    What Kinds of Services or Applications Will the Network Offer?

    Of course, everyone knows that the most important function of a network today is to support multiuser gaming. Seriously, though, you need to make a list of the kinds of applications currently in use, as well as a list of those requested by users. Each application should have a written risk assessment document that points out potential security problems, if any. Typical network applications today include FTP, telnet, and, of course, browsing the Web. There are "secure" versions of these applications and there are versions that leave a door wide open into your network. Whatever list of applications you chose to support over the network, keep in mind two things:

  • Is the application safe? Most applications today come in secure versions or can be used with a proxy server to help minimize the possibility of abuse. Yet, as we all have seen, even the largest corporations are targets at times, and those companies have the staff that should be able to prevent these things from happening. Because proxy servers are an important component of firewalls, this subject is covered in greater detail in Chapter 45. If you want a secure network, this is highly recommended reading!
  • Does one application overlap another? Every user has his or her favorite application. Some people like one word processor, whereas others prefer a different one. But when dealing with applications or application suites (such as Microsoft Office), you'll find it better to make a decision and stick with a single product if it can satisfy the needs of your users. They might not like it, and training might be necessary, but supporting multiple applications that do the same thing wastes money and leads to confusion.
  • A commonly overlooked method for getting data files out of a network and onto the Internet is to simply send the files as an attachment to an email. So if you think you've blocked file transfers by disabling FTP access through the firewall, this example should show that you really do need to do a thorough evaluation of any new application or service you will allow on the network. New applications should be justified with facts that show why they are needed. If an existing application can be used to accomplish the same goal, why do you need another application? Should you retire the older application and use a newer one? Pay attention to the details. And don't forget to test new applications to ensure that they perform as expected. The same goes for older applications—will they work on the new or upgraded network?

    Lastly, do you monitor network usage? Do you want to permit users to spend their days browsing the Net, or checking personal email while at work? Many companies have policies that apply to using the telephone for personal business. Do you overlook this situation when giving users email capability? Are you preventing access to sites that are obviously not business-related?

    What Degree of Reliability Do I Require for Each Network Link?

    Just how much downtime is acceptable? For most users, the answer would be zero. Important components of your network, such as file servers, should have fault tolerance built in from the bottom up. In large servers, you'll find dual-redundant power supplies (each connected to a separate UPS), and disk arrays set up using RAID techniques to provide for data integrity in the event that a disk goes south. If a link between two offices needs to be up 100% of the time, you should plan for multiple links between the two sites to provide a backup capability. In this case, you also can justify the cost of the extra link by using load balancing so that network response time is improved. And, if you are using multiple links to remote sites, it's always a good idea to have more than a single path to the site. At one site this author worked at, there were redundant power lines bringing electricity into the site—side-by-side. If a tree falls, will it bring down one or both of those power lines?

    Another technology that can be used to provide an extra layer of redundancy, as well as high-speed access to storage devices, is the Storage Area Network (SAN). A SAN is a network that is separate from the LAN and contains only storage devices and servers that need to access those devices. Because the network bandwidth is not shared with LAN users, multiple servers can access the same storage. If one server fails, other servers can be configured to provide redundant access to the data. Also, the same RAID and other redundancy techniques used for storage devices that are directly attached to a server (such as the SCSI hardware and protocols) can be used on a SAN.

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    The terms RAID and UPS are important in today's networks, as is the concept of load balancing and dual-redundant power supplies in large networks. You can find out more about RAID (Redundant Array Of Independent Disks) and UPSs (uninterruptible power supplies) by reading Chapter 5, "Protecting the Network: Preventative Maintenance Techniques." For more information about SANs, see Chapter 11.

    The old saying "If it ain't broke, don't fix it" doesn't apply to networks. You should always be proactively looking for potential single points of failure and doing something to fix them. By building redundancy into the network design at the start, you'll save yourself a lot of grief in the future.

    Chapter 5 can give you more suggestions about using clustering, backups, uninterruptible power supplies, and other techniques that can keep the network up and running.

    Choosing a LAN Protocol

    Today the de facto protocol of choice has to be TCP/IP. However, other protocols have their place in some vertical markets. In this book, we talk about NetWare. NetWare has been around so long that you might find you have no choice when designing an upgrade but to keep using IPX/SPX, depending on the applications your network uses. However, even NetWare has moved toward using TCP/IP as the underlying protocol. This is basically the case for version 5.x and 6.x of NetWare. Older NetWare networks should upgrade, if possible, to one of these newer versions. If you will be connecting the network to the Internet, TCP/IP will be a necessity. Even if you don't expect to have an Internet connection, you'll find that choosing TCP/IP is a more practical choice today because most applications work with it and there is a large market of trained professionals who can be hired to manage a network built on TCP/IP. NetWare 6.x provides backward compatibility with IPX/SPX for the most part, but newer features such as the iPrint—which uses the Internet Printing Protocol—require TCP/IP.

    In addition to transport protocols such as TCP/IP and IPX/SPX, you must consider application protocols that can be used on the network. For example, to simplify administering configuration information for a large number of computers, you might want to use the Dynamic Host Configuration Protocol (DHCP), which is discussed in Chapter 28, "BOOTP and Dynamic Host Configuration Protocol (DHCP)." If you want to provide a central name resolution service, you might choose the Domain Name Service (DNS), which is covered in Chapter 29, "Network Name Resolution." If you are going to operate a Windows network that has pre–Windows 2000/XP clients, you might need to use the Windows Internet Naming Service (WINS) for backward compatibility.

    So when thinking about a network protocol, remember that it's not just one protocol you need to worry about. After you've decided which protocols are necessary, research the security implications of each.

    It's Virtually Universal: TCP/IP

    For all practical purposes, the standard LAN protocol today is TCP/IP. This is partly due to the rapid growth of the Internet, and the necessity of most businesses of having a Web presence, as well as the large number of vendors that have adopted this protocol suite. If your LAN is still using an older proprietary network protocol, you should seriously consider what it would take to upgrade to TCP/IP. Currently, TCP/IP version 4 is the most widely used protocol. In the future you can expect that the next version (IPv6) will start to find its way from the core of the Internet out to the edge, where your network resides. While technologies such as Network Address Translation (NAT) are widely employed to remedy the problem associated with the limited address space provided by IPv4, IPv6 will enable a much larger address space. Combine that with Network Address Translation, and the long-term bets are going to be on IPv6, or possibly some of the features that are part of IPv6. In addition to giving you a larger address space, IPv6 includes other important features. Those that will affect your network the most are security mechanisms, which will only become more important as Internet commerce continues to grow.

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    For a detailed introduction to TCP/IP, see Chapter 24, "Overview of the TCP/IP Protocol Suite"; Chapter 25, "Basic TCP/IP Services and Applications"; and Chapter 27, "Troubleshooting Tools for TCP/IP Networks."

    There is one very important reason you should consider TCP/IP as a LAN protocol: There are more trained professionals knowledgeable in TCP/IP than any other LAN protocol at this time. It is interesting to note that in Windows NT 3.51, the default network protocol was Microsoft's implementation of IPX/SPX (NWLink). In Windows NT 4.0 (and successive operating systems, from Windows 2000, XP, and Server 2003), the default network protocol is TCP/IP.

    If your network is composed of several operating systems, from Windows to NetWare to Unix and Linux, then the bottom line is that TCP/IP is the lowest common denominator that will allow the easiest connectivity and interaction between all of these. Even Microsoft's now-legacy NetBIOS/NetBEUI protocols have been adapted to run over TCP/IP.

    Novell's NetWare Version 6.5

    NetWare was perhaps the first attempt at seriously providing a LAN protocol that was easy to use. The basic file and print services offered by early versions of NetWare were much better than other solutions available at that time. After it became established in the business community, NetWare became the network solution of choice in many business environments that used the PC. Microsoft countered this success with its LANManager products, which were also marketed by other vendors in their own way, such as the Pathworks solution from Digital Equipment Corporation.

    Today NetWare is a totally revamped solution to LAN connectivity. It provides many new features that are addressed to specifically make use of the Internet, and allow mobile users to connect to their home networks, as well as to enable NetWare users to make connections to outside networks. For example, the iPrint feature enables NetWare users to print to a printer on a remote network. For example, instead of sending a catalog that may be out of date in a month or so, you can use iPrint to periodically send specific information relevant to each customer, by printing it directly to the customer's printer.

    And NetWare's iFolder allows mobile users to synchronize data stored on remote computers (such as a laptop computer) with the data stored on the company's network. Microsoft and other vendors offer similar features. However, the point to remember is that if you already are a NetWare user, you don't have to throw out your existing investment and move to a Microsoft network, or even a Unix/Linux environment. NetWare has changed as the market has changed, and you might find it less expensive to upgrade to NetWare 6.5 than to migrate to another platform. The bottom line involves not just the cost of migrating to another operating system, but the costs involved with retraining your network administrative personnel in new technology.

    Because NetWare 6.5 is so tightly integrated with the IP protocol, and also offers backward compatibility with IPX/SPX, admins for existing NetWare networks should consider upgrading to NetWare 6.5 as well as considering other options.

    If you want to move to Linux, Novell makes it easy by incorporating an enhanced version of NetWare 6.5 and SuSE Linux into its Novell Open Enterprise Server. Open Enterprise Server supports both Linux and NetWare-specific software and features, enabling you to move to Linux gradually.

    Other LAN/WAN Protocols

    The distinction between LAN and WAN (wide area networking) protocols is beginning to blur. Ethernet was once considered to be a LAN protocol. As time has passed, other technologies, such as Token-Ring, have become minor players in the LAN world. Yet the opposite is true of Ethernet. It has grown from a modest specification endorsed by Intel, DEC, and other vendors, such that it now can be considered a WAN protocol. The capabilities introduced by current LAN technologies are beginning to erode the differences between a LAN and a MAN (metropolitan area network). When the fourth edition of this book was published, Gigabit Ethernet was starting to fall into the inexpensive range of network topologies. That trend has continued and now 10Gigabit Ethernet (10GbE) is frequently being used in enterprise data centers. Today you may be using 100BASE-T for connecting client computers to the network, and Gigabit Ethernet to connect network segments via the network backbone. In some cases your network might even be exclusively based on 10GbE.

    What does this mean to a network administrator today? With 10Gigabit Ethernet, you can use TCP/IP not only to create a local area network backbone, but to extend that reach to a metropolitan area network. And because TCP/IP is so intertwined with Ethernet, you can achieve an end-to-end MAN link that uses TCP/IP over faster Ethernet connections. Instead of employing more expensive solutions, such as SONET, you can now connect branch offices in the same geographical area using just TCP/IP.

    You may not have to worry about installing expensive equipment used by SONET and other typical MAN protocols. Still, for the long haul—for example, between different cities—other protocols such as ATM and Frame Relay will come into play.

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    For more information about SONET, ATM, and Frame Relay, see Chapter 15, "Dedicated Connections."


    Business Intelligence and Analytics | killexams.com real questions and Pass4sure dumps

    Registration is Open for DBTA’s Data Summit 2019 in Boston

    Data Summit brings together IT practitioners and business stakeholders from all types of organizations. This year, A.M. Turing Award Laureate and database technology pioneer Michael Stonebraker will deliver the opening keynote titled "Big Data, Technological Disruption, and the 800-Pound Gorilla in the Corner."

    Posted February 21, 2019

    Redis Labs Raises $60 Million in Latest Funding Round

    Redis Labs, the home of Redis and provider of Redis Enterprise, is receiving $60 million in Series E financing, furthering the company's plans for investment in its platform. With these funds, the company plans to accelerate its global go-to-market execution, invest further in the enthusiastic Redis community, and continue its leadership in delivering the highest performing, most efficient database platform for modern applications.

    Posted February 21, 2019

    Redgate Software SQL Monitor Adds Support for Azure

    Redgate is releasing an updated version of SQL Monitor, enabling entire SQL Server estates to be managed and monitored from one dashboard whether on premise or in the cloud. After months in development, SQL Monitor v9 gives users the ability to seamlessly monitor hybrid and cloud estates, including both Azure Managed Instances and SQL Database Elastic Pools.

    Posted February 21, 2019

    Data Management Experts Share Best Practices for Machine Learning

    Machine learning is on the rise at businesses hungry for greater automation and intelligence with use cases spreading across industries. At the same time, most projects are still in their early phases as companies learn how to deal with selecting data sets and data platforms to architecting and optimizing data pipelines. DBTA recently held a webinar with Gaurav Deshpande, VP of marketing, TigerGraph, and Prakash Chokalingam, product manager, Databricks, who discussed key technologies and strategies for dealing with machine learning.

    Posted February 15, 2019

    SAP and Bradmark Help the European Southern Observatory to See the Stars

    ESO, the European Southern Observatory, is the foremost intergovernmental astronomy organization in Europe and the world's most productive astronomical observatory. The organization depends on SAP and Bradmark technologies to power its astronomy technology. The SAP database is at the core of ESO's operations, said John Lockhart, critical applications support group leader, ESO. It currently sits at the center of the dataflow for the current suite of telescopes. 

    Posted February 15, 2019

    DigitalOcean Offers Managed Databases Platform

    DigitalOcean, the cloud for developing modern apps, is launching Managed Databases, with PostgreSQL as its first offering, allowing developers to create fully managed database instances in the cloud quickly and efficiently.

    Posted February 14, 2019

    DBTA Now Accepting Nominations for the 2019 Readers' Choice Awards

    It's time to submit nominations for the annual Database Trends and Applications Readers' Choice Awards Program in which the winning information management solutions, products, and services are chosen by you—the people who actually use them. The nominating process will conclude on Wednesday, March 13, 2019, so be sure to nominate your favorite products now!

    Posted February 13, 2019

    SophiaTX Partners with Block Unison to Bolster the Creation of a Blockchain Ecosystem

    SophiaTX, a Swiss-based blockchain Platform for businesses, is joining forces with Block Unison to help further develop a global enterprise blockchain ecosystem through IoT, smart contract, and enterprise application integration. The combination of mature services and blockchain technology expertise present in Block Unison will help SophiaTX establish itself as a desired platform for any innovative company looking to extend their level of trust and collaboration across the value chain.

    Posted February 13, 2019

    SAP Creates Blockchain Technology Hub for Pharmaceutical Manufacturers

    SAP is releasing a blockchain-technology hub to help eliminate counterfeit products along the pharmaceutical supply chain. The SAP Information Collaboration Hub for Life Sciences is designed to authenticate pharmaceutical packaging returned from hospitals and pharmacies to wholesalers before products are resold.

    Posted February 13, 2019

    Making Data Accessible: Q&A with Dremio's Kelly Stirman

    For many companies, designing and implementing a data platform for analytics is a critical task. According to Dremio, a VC-backed firm founded in 2015, by combining capabilities and technologies into a solution that enables access, transformation, security, and governance, data as a service represents a new approach to vexing analytics challenges, delivering data at scale with high performance. Recently, Kelly Stirman, vice president strategy at Dremio, discussed how using open source projects, open standards, and cloud services, companies can deliver data as a service to their data consumers across critical lines of business.

    Posted February 12, 2019

    Veritas Technologies Attains AWS Storage Competency Status

    Veritas Technologies, a provider of enterprise data protection and software-defined storage, and its platforms Veritas NetBackup and Veritas Backup Exec have attained Amazon Web Services (AWS) Storage Competency status, reaffirming Veritas as an AWS Partner Network (APN) Advanced Technology Partner offering solutions validated by the AWS Storage Competency.

    Posted February 12, 2019

    Waterline Data Taps into AI to Introduce Fingerprinting Technology with Latest Update

    Waterline Data, a provider of data cataloging solutions and applications, is releasing the latest version of the Waterline Data AI-driven Data Catalog (AIDC). Leveraging Waterline's newly-patented Fingerprinting technology, AIDC 5.0 adds to Waterline's ability to catalog individual data items, automatically and at scale, by now allowing organizations to work with related datasets across the enterprise for far deeper and cleaner insights for analytics than any other catalog can provide.

    Posted February 11, 2019

    Lentiq Releases Flexible Data Lake Platform

    Lentiq introducing a new platform called EdgeLake, offering a multi-cloud, production-scale Data Lake as a Service for increased flexibility, collaboration, and analytics.

    Posted February 11, 2019

    Shield Watch Rebrands as Concertium, Releases First New Solution

    Shield Watch is rebranding to Concertium, a company focused on connecting people with data and devices to power digital transformation. The new brand, Concertium, will be fully focused on harnessing the power of data to create a sustainable, competitive technological advantage for its customers.

    Posted February 11, 2019

    Global Study Examines How Data and Analytics Can Help Finance and HR

    A new Oracle study of 1,510 HR, finance, and business professionals has found that in order to unlock the value from data and help their organizations adapt to the changing nature of the global talent market, HR teams need to rethink analytics technology, skills, and processes to improve collaboration with finance and drive a competitive advantage.

    Posted February 06, 2019

    Oracle Autonomous Database: Q&A with Oracle’s Juan Loaiza

    The Oracle Autonomous Database has generated a lot of speculation about its relevance to the future of Oracle DBAs, security concerns, and how to choose the most suitable deployment options.  Recently, Juan Loaiza, EVP, Systems Technology, Oracle Database, reflected on the autonomous database, Oracle Exadata, and customer preferences.

    Posted February 06, 2019

    ParallelM to Integrate with H20.ai

    ParallelM, a provider of MLOps, is integrating with H2O open source to drive the adoption of AI across industries. The integrations will allow H2O.ai customers to quickly deploy and manage models in ParallelM MCenter and manage ongoing lifecycle needs like model health monitoring and model retraining for models running in production.

    Posted February 05, 2019

    Platform9 Introduces Kubernetes Service on VMware

    Platform9, a provider of a SaaS-managed hybrid cloud, is introducing a managed Kubernetes service on VMware vSphere with Platform9 Managed Kubernetes. Platform9 Managed Kubernetes (PMK) allows enterprises to be up and running in less than an hour with Kubernetes on VMware that is both simple to use and production-ready.

    Posted February 04, 2019

    Dynatrace Opens AIOps Solution to Third Parties for Smart Autonomous Cloud Management

    Software intelligence company, Dynatrace, has announced the next generation of its AI engine, Davis, now powered by new and enhanced algorithms, and an ability to ingest data and events from third-party solutions. Dynatrace's Davis is now able to ingest custom metrics, data, and events from third-party solutions such as CI/CD and ITSM tools, enabling Dynatrace to deliver more precise answers with deeper context. Integrations include F5, IBM DataPower, Citrix NetScaler, ServiceNow, Puppet, Chef, and others.

    Posted February 04, 2019

    Migrating from Unix to Linux with VLSS

    VLSS is a group of Oracle and VMWare experts that focus on helping customers implement and utilize Oracle products. Since its inception in 2005, the company has been premiere partners with Oracle and recently started the initiative to move off Unix and into Linux.

    Posted February 01, 2019

    Alfresco Boosts Application Development Framework

    Alfresco, an open source provider of process automation, content management, and information governance software, is releasing an updated version of its Application Development Framework. ADF 3.0 extends Alfresco's content market leadership with significant performance enhancements designed to increase user satisfaction and adoption, serve up deeper insights securely, and connect content, processes and people more rapidly.

    Posted January 31, 2019

    SQL Server 2008 Reaches the End of its Life This Year

    This year is a pivotal one for some legacy applications. Extended Support for SQL Server versions 2008 and 2008 R2 is ending in July, to be followed 6 months later by the end of Extended Support for Windows Server 2008 and 2008 R2. The clock is ticking for enterprises to migrate or upgrade their systems.

    Posted January 31, 2019

    New MariaDB Platform Launches in the Cloud

    MariaDB is releasing MariaDB Platform X3, an open source database that unites transactional and analytical workloads at scale, and introducing a new MariaDB Managed Service supporting public and hybrid cloud deployments. MariaDB Platform X3 brings together MariaDB TX and MariaDB AX in one platform that can uniquely scale out transactions or analytics to support business growth goals.

    Posted January 31, 2019

    SolarWinds Reveals Analytics Toolset Bundle

    SolarWinds, a provider of IT management software, is unveiling the SolarWinds Flow Tool Bundle, a set of free analysis tools designed for greater visibility into network infrastructure.

    Posted January 30, 2019

    Microsoft Expands Focus on PostgreSQL Community with Citus Data Purchase

    Microsoft has acquired Citus Data, a provider of a platform for scaling out Postgres databases. According to Rohan Kumar - corporate vice president, Azure Data, because Citus is an extension to open source PostgreSQL, it gives enterprises the performance advantages of a horizontally scalable database while staying current with all the latest innovations in PostgreSQL.

    Posted January 30, 2019

    dotData Unveils AI-Powered Automation Platform for Data Science

    dotData, a provider of end-to-end data science automation and operationalization, is releasing dotDataPy, a lightweight and scalable Python library that enables advanced users to access dotData's data science automation functionality. With just a few lines of code, data scientists can now create, execute and validate end-to-end data science pipelines.

    Posted January 29, 2019

    Syntax Systems Enters the SAP Application Market with Recent Acquisition

    Syntax Systems (Syntax), a provider of cloud managed ERP services, is acquiring German IT services company Freudenberg IT (FIT), enabling Syntax to enter the SAP application market. This acquisition expands Syntax's service offerings in the SAP market and complements existing business operations.

    Posted January 29, 2019

    Birst Releases Smart Analytics Suite of Solutions

    Birst, an Infor company and a provider of Cloud Business Intelligence (BI) and Analytics for the Enterprise, is introducing its Smart Analytics family of solutions, powered by Infor Coleman AI. Birst Smart Analytics is a new set of AI-enabled capabilities that elevate organizations above traditional reports and dashboards, using machine learning algorithms to power intelligent insights not previously available to business users.

    Posted January 29, 2019

    ParallelM Releases Platform Updates for Data Scientists

    ParallelM, a provider of MLOps, is introducing new versions of MCenter targeted to data scientists and data science teams, allowing small-to-medium-sized companies or enterprise customers to buy a version of the product that fits their current needs and scale as their businesses grow.

    Posted January 28, 2019

    Cloudian Integrates its Object Storage Platform with Veeam

    Cloudian's HyperStore object storage platform can now integrate with Veeam's newest data protection software release, Veeam Availability Suite 9.5 Update 4. This integration provides new and existing Veeam customers with scalable storage that works across public and private cloud environments.

    Posted January 28, 2019

    How Quest Helped Express Scripts Manage its Database and Prepare for the Future

    Express Scripts provides pharmacy and medical benefits management, specialty pharmacy care, and everything in between. The company seeks to uncover opportunities to make healthcare better and they rely on the uptime and availability of data to be a market leader. This is where Quest comes in. In a recent DBTA webinar, Mertz and Jason Hall, Jason Hall senior technical sales engineer, Quest Software, explained how Quest helped Express Scripts manage its database and prepare for the future.

    Posted January 25, 2019

    Michael Stonebraker to Deliver Opening Keynote at Data Summit 2019 in Boston

    A.M. Turing Award Laureate and database technology pioneer Michael Stonebraker will deliver the opening keynote at Data Summit 2019. The sixth annual Data Summit conference will be held in Boston, May 21-22, 2019, with pre-conference workshops on May 20. Registration is now open.

    Posted January 23, 2019

    Onapsis Acquires Virtual Forge to Boost Security for SAP Infrastructures

    Onapsis, a provider of ERP cybersecurity and compliance, will acquire Virtual Forge, allowing the company to strengthen security of SAP applications and extensions. The combination of Onapsis and Virtual Forge will empower customers to have unparalleled visibility, incident response, management, and compliance for business-critical applications.

    Posted January 23, 2019

    New S/4HANA-Based Subleger Solution Now Available from SAP

    SAP is launching an S/4HANA-Based Subledger solution for Financial Products, providing a central hub to manage data between operational and finance systems. It takes advantage of SAP's in-memory computing platform, SAP S/4HANA, for flexibility and speed. The subledger solution runs on a multi-GAAP accounting engine that provides enhanced calculation and accounting capabilities for payments, business events, and estimated cashflows.

    Posted January 23, 2019

    Kronos to Provide Workforce Management Solution to SAP

    Kronos Incorporated is entering a global agreement with SAP, allowing SAP to resell Workforce Dimensions, the next-generation workforce management solution by Kronos. SAP has selected Workforce Dimensions as its workforce management solution for customers with complex scheduling, time and attendance, absence management, labor activities, and workforce analytics requirements.

    Posted January 23, 2019

    AI and Machine Learning: 9 Predictions for 2019

    In 2018, there was heightened awareness of AI and machine learning and, in 2019, the emphasis is expected to increase on cognitive computing technologies that can analyze data in ways previously unimaginable and act independently or with limited human intervention. Here, executives of leading IT companies offer 9 predictions for what's ahead in 2019.

    Posted January 23, 2019

    Zumasys Acquires OpenQM

    Zumasys is acquiring OpenQM, a self-tuning MultiValue database, from UK-based Ladybridge Systems. OpenQM provides customers with a scalable MultiValue database solution that's compatible with existing applications and other major MultiValue products.

    Posted January 23, 2019


    Disaster recovery planning: Special report | killexams.com real questions and Pass4sure dumps

    When it's time to implement a disaster recovery plan, storage administrators are faced with the task of protecting important corporate data off site and making adequate preparations to resume normal business operations in the event of an emergency. This may seem like a reasonably straightforward objective, but choosing the right infrastructure can prove unwieldy. A wide proliferation of storage technologies make the choice of platform difficult, and software choices must often accommodate a heterogeneous storage environment that is frequently separated by a large geographic distance. This article outlines many of the tools and technologies that are currently available for disaster recovery (DR) applications and examines some future directions of DR.

    Setting recovery objectives

    Before any disaster plan can be implemented, it is absolutely critical to establish the recovery requirements. This involves a thorough understanding of your applications and the way they relate to everyday business.

    Data classification plays a part in disaster planning. Not all data is created equal -- the company's Oracle database or Exchange platform may be mission-critical, but a repository of PowerPoint presentations may not be essential to the business in the event of disaster. The first step is to identify the applications and data sets that should be protected by a DR plan. Classifying data for DR carries a twist. "Storage classification is more around usage, access and so forth, while DR is more around linkage to business functions, risk mitigation and survivability versus how the storage is being used," says Greg Schulz, founder and senior analyst at StorageIO Group.

    Once you understand the applications that need DR protection, you'll need to set a recovery point objective (RPO) and recovery time objective (RTO) for each one. The RPO essentially defines how much data you can afford to lose, while the RTO defines just how much time you have to recover from the disaster. RPO, and to a lesser extent RTO, will influence the technologies and costs involved in your DR plan. "For example, think about American Express having to tell Macy's it just lost the last 1,000 transactions that came out of its stores," says Pierre Dorion, senior business continuity consultant at Mainland Information Systems Inc. "It wouldn't send Amex [American Express] filing for Chapter 11, but it sure would leave them with a serious black eye!"

    Making DR work

    No two DR plans are identical. Each strategy must be formulated to match unique business needs and legal requirements while accounting for the most likely "disaster" scenarios. While needs and plans can vary dramatically, most draw from the same selection of underlying technologies. A DR plan will often include a mix of several different technologies.

    Backup. Traditional backups are still the foundation of many DR plans, leveraging existing tape drives or libraries to copy crucial files to tape media that can then be taken off site to a protected location. Disk-based backups are systematically replacing tape, bringing better speed and reliability to the backup process. Backups can be made to any disk array or other platform, but virtual tape has emerged as a popular alternative when disk technology must emulate tape. Backups can be made locally on site but can also be made to off-site locations across a WAN link.

    Mirroring/replication. This disk-to-disk process simply creates a data copy between two disk platforms. When trouble strikes the original copy, data can be restored from the replicated copy -- or possibly even accessed directly from the mirror. As with backups, mirroring between disks can be handled locally within the data center or between disks across a WAN link. Most storage array products provide mirroring/replication software utilities bundled with the product.

    Snapshot. A snapshot creates an index of all data locations on the storage platform and tracks any subsequent changes to the data at each location. Over time, a running log of storage changes develops, allowing administrators to restore files and folders that may become lost or corrupted. Since the amount of storage space needed to maintain an index file is limited, it is only possible to store a finite number of snapshots. Consequently, snapshots are typically employed as a short-term protective tactic. Snapshots are basically just a list of data locations and do not back up data to a second location, so it is still important to protect data through periodic backups or replication.

    WAN/WAFS. Disaster planning usually demands that data copies be stored in a location separate from the original -- if fire destroys the data center, a viable copy of the data is still available. Today, WAN links are used to backup or restore data directly between remote sites. For example, remote offices might back up their servers to the primary data center each night using fractional T3 WAN links, mobile users can back up their laptops to the data center across the broadband Internet or a data center might replicate its main servers to a backup data center across an OC3 connection.

    WAFS is an emerging technology for IT centralization, allowing remote offices "local-like" access to applications and data from the primary data center across a WAN link. WAFS is not directly considered a DR technology, but has an impact on remote office IT consolidation, which will influence DR strategies.

    Virtualization. The demand for duplicate equipment can impose a significant cost for DR users. For example, an EMC Corp. Centera in the primary data center may need another EMC Centera at the remote location. Virtualization technology abstracts the hardware, usually allowing data to reside and operate on different hardware at the remote location. This gives organizations the option to deploy used or available hardware, rather than purchasing identical storage hardware for the remote site.

    CDP. Continuous data protection maintains a running log of storage changes based on key events or even down to individual I/O operations. This type of continuous operation reduces the RPO to almost zero, and administrators can recover lost or corrupted data from disk in an extremely short timeframe -- keeping RTO short. CDP is not generally intended as a DR technology but is increasingly employed to protect busy networks (e.g. retail or data processing operations) against lost transactions. As with snapshots, data on a CDP platform still needs to be backed up.

    CAS. Data that requires only occasional access is sometimes archived to a disk-based content-addressed storage (CAS) device. Unlike ordinary disk platforms, CAS devices typically include security features to prevent file alteration/tampering, compliance features to ensure file availability for a prescribed retention period and data deduplication (a.k.a. "intelligent compression") features that optimize disk space utilization by eliminating redundant data. CAS devices are mainly intended for long-term archival storage but are sometimes used for disk-based backup purposes.

    Turning to tools

    Any DR strategy has to start with a solid plan, but it's the hardware and software that turn plans into reality. Hardware goes beyond the disks, supporting advanced storage features like mirroring/replication, snapshots or CDP. Hardware also plays a vital role in moving data across a WAN, allowing synchronous or asynchronous data movement and often providing compression and data deduplication capabilities that optimize bandwidth use.

    Analysts point to the DMX from EMC as a leading enterprise storage product for DR, citing robust storage and mirroring/replication that handles multisite configurations. The DMX also supports synchronous and asynchronous data movement and multivolume data handling to maintain data integrity between multiple sites. Other leading storage hardware products for DR include the NearStor virtual tape library (VTL) from Network Appliance Inc., and the TagmaStore storage array from Hitachi Data Systems Inc.

    Cisco Systems Inc. is another notable DR hardware vendor, providing a variety of network routers and switches that support local, metropolitan and wide-area data movement using technologies like SONET/SDH, DWDM and IP -- important technologies for synchronous and asynchronous data movement. Brocade Communication Systems Inc. also specializes in switching hardware, such as the SilkWorm family of director switches.

    Tape still plays a role in DR for many organizations. Products like the L1400M tape library from Sun Microsystems Inc. (StorageTek) and the PX720 tape library from Quantum Corp. handle backup and archiving within the data center and between sites.

    Heterogeneous support is increasingly important when selecting storage equipment, ensuring that a new manufacturer's product will interoperate properly with existing products in the data center. In many cases, heterogeneous products can be configured and maintained using existing management software, easing integration problems for new systems. Products are often evaluated in advance to guarantee interoperability.

    Backup software and DR

    Software tools also deserve serious consideration in any DR plan, bringing organization and management features to the users that must implement and oversee DR operations. Although there are many types of backup software available for the enterprise, the tools used for DR must be particularly easy to use, especially in terms of rapid recovery. DR software must also be flexible, adaptable, interoperable and scalable. In short, it must be able to grow and change as the DR environment evolves.

    NetBackup from Symantec Corp. (Veritas) is perhaps the most recognized backup tool for DR applications. Capable of working with disk and tape platforms, NetBackup can operate enterprise-wide backup and recovery tasks regardless of geographic location using a single console under UNIX, Windows, Linux and NetWare. NetWorker from EMC Legato, Tivoli Storage Manager from IBM and Galaxy Backup & Recovery from CommVault Systems Inc. are three other notable backup/recovery products selected for DR tasks.

    DR planning software

    However, software considerations go beyond backup. Software tools are available to help organizations develop and maintain their DR plan. In most cases, these tools are intended to track hardware in the production and DR environments, ensuring that storage arrays, SAN switches, tape drives, servers and other devices are all available and functioning as expected. TeraCloud Corp.'s Storage Framework and Onaro Inc.'s SANScreen are two notable products that gather and report this type of information. Sentric's Destiny product is an emerging product that classifies and reports data on email servers, file servers and database servers.

    Aside from infrastructure tracking tools, there are several tools available that can actually help organizations develop and manage their specific plans. For example, RecoveryPlanner from RecoveryPlanner.com provides DR planners with Web-based software for plan creation, distribution and management over the Internet. It also includes notification services, so responsible individuals can be kept informed throughout the disaster and recovery process. Similarly, Strohl Systems Group Inc. offers its Living Disaster Recovery Planning System software to help users develop comprehensive business continuity plans.

    The future of DR

    Disaster recovery strategies are shifting away from "backups" and moving toward the concepts of "recovery" and "continuance." The trend toward continuance should continue as organizations set their sights on uninterrupted business operations. Part of this trend is due to the continued evolution of technology in storage platforms like VTL, CDP and snapshots. This is further supported by improved bandwidth utilization using features such as intelligent compression (a.k.a. data deduplication), allowing companies to exchange more data over greater distances in less time. For example, data can be backed up directly to a VTL located hundreds of miles away, then transferred to a tape library for off-site tape storage.

    Analysts see the move toward lower costs, better integration and easier management. Emerging products like Bycast Inc.'s StorageGRID are recognized for storing and replicating data between multiple sites. "I believe this is the future of DR in terms of delivering data where and when you need it so that even a geographic disaster is not the same level of concern it is now," says Jerome Wendt, independent storage analyst. Analysts also look to startups to significantly accelerate replication speeds in 2007.

    Virtualization is also likely to play a central role in future DR strategies. By adopting virtualization, hardware requirements become less stringent between sites -- with fewer potential configuration and set up problems to impair recovery. "Server virtualization is a huge enabler of DR," says Stephen Foskett, director of strategy services at GlassHouse Technologies Inc. "Many companies are sending VMware images off site so that they don't have to have exactly the same hardware waiting for them on the other end."

    Consider the role of third-party DR service providers. Although DR services have not been terribly popular over the last few years, a resurgence may be on the horizon. "SunGard, Iron Mountain Inc. or IBM Global may come back into favor because organizations may not have a second location," says Brian Babineau, analyst at the Enterprise Strategy Group. He suggests that the economics of outside DR services may make sense for smaller enterprises that lack the budget and staff to deploy and maintain an in-house DR system.



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