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5 Things you need to know about Disaster Recovery

eBook I helped author discussing how new technology has affected disaster recovery planning

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5 Things you need to know about Disaster Recovery

  1. 1. Five ThingsYou Need toKnow TodayAbout DisasterRecoveryPlanningThe Changing Faceof Disaster Recovery
  2. 2. Table of ContentsIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Multiple Flavors Aren’t Just for Ice Cream Anymore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Virtual This, Virtual That—Let’s Get Real . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5When Did Weather Metaphors Become So Common? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Wait…This Sounds Expensive? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Hope Is Not a Strategy — the Hidden Secret of Disaster Recovery Planning . . . . . . . . . . . . . . . . . . . . . . . . . . 8Fantastic! What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
  3. 3. 3 Five Things You Need to Know Today About Disaster Recovery Planningfive thingsIntroductionAs a busy data center manager, you might bestruggling to keep up with the challenge of What would you do if an employee forgot to unplug a humidifier in his or her cubicle and the power gridcontinually doing more with fewer resources . IT has feeding your servers and storage imploded?become an integral part of business operation; infact, most, if not all of the infrastructure you supportis critical for keeping your company up and running .However, despite being asked to do more with less, Don’t know?you probably haven’t gotten any more budget or We are here to help.team members, so you may have been forced toput some projects on the back burner .Chances are disaster recovery is one of thoseprojects you’d like to bring to the front of the priority This guide will cover five characteristics of dataqueue, and for good reason . It’s nearly impossible centers today that require new thinking when itto turn on the news without being bombarded by comes to disaster recovery planning:all the potential risk out in the world . Whether it is 1 . The new face of IT: Mixed platforms everywhereturbulent weather, natural disasters or man-made 2 . How virtualization can change everythingaccidents, something bad seems to always be 3 . Cloud computing and the new model of IT servicehappening . delivery 4 . How to measure the return on investment (ROI) ofWhen is the last time you took a look at your disaster disaster recoveryrecovery planning? What do you expect would 5 . Planning and testing for higher confidencehappen if the ceiling collapsed in your data center? Soon, you’ll be ready to tackle these new realities of disaster recovery planning, with new approaches to protection that can make your life easier .
  4. 4. 4Multiple Flavors Aren’t Just for IceCream AnymoreMulti-platform data centers are no longer an The move from mainframes to smaller servers madeexception . They have become quite normal . the data center strategy simple: When you neededSeveral years ago, most data centers were pretty more applications, just bought more servers .homogeneous; all of the data residing there typically Servers were cheap, so why not? The systemcame from one vendor . This made things pretty easy worked well for a time, until the servers began toto manage . There was only one set of instructions to take up way too much space and use way too muchlearn and one phone number to call if anything went power, even as most of the server resources weren’twrong . The problem was that this data also carried a even being used .massive price tag and was called a mainframe . The solution to the problem was called virtualization .As the IT world continued to grow, several engineers Virtualization allowed data centers to consolidate toand innovative companies (mostly out of California) a more manageable size and footprint . The problemstarted to design much cheaper processors, was that all of these changes overlapped . Nothingallowing other folks to build real servers out of PC ever went away completely . Data centers just got acomponents . These new servers used a new set bit smaller, or applications were shuffled around .of common standards, and they had a much lowercost barrier for entry, even for small organizations . What is left today is a typical data center . It hasLarge organizations took advantage as well, and been built up over the years with multiple flavors ofboth had a buffet of building huge data centers with platforms and vendors: a little bit of mainframe, athese x86 building blocks . Some call this the golden little bit of x86 and a whole lot of virtualization .age of the data center . Analysts simply called it the So what happens if the power goes out?client-server model . Unfortunately, the hodge-podge of solutions in the data center means a little bit of this and a little bit of that for recovery planning as well . You would need one plan for the mainframe, one for the Linux servers, one for the Windows servers and probably a virtual recovery plan, too . More flavors, more confusion, more headaches . multi platform
  5. 5. 5 virtualityVirtual This, Virtual That—Let’s Get RealHidden within the jumble of mixed-platform data The typical process to recover a physical servercenters is a secret . All those virtual resources is often:can actually be used for more than simply virtual 1 . Find or buy equivalent or compatible physicalmachine recovery . One wonderful thing about serversvirtualization is that virtual machines can be used to 2 . Install an operating systemrun many different types of workloads . This flexibility 3 . Install patches and updatescan, and should, be applied to disaster recovery . 4 . Install applicable applicationsWhy not create a virtual recovery platform that can 5 . Install patches and updatesoffer protection for all your workloads, including 6 . Upload backup dataphysical, virtual, Windows and Linux? Using virtual recovery, almost all those steps can beVirtual recovery plans can simplify, and in some made a thing of the past . The process to recover acases eliminate, many of the platform-specific physical server can be as simple as:headaches of recovering from a disaster . 1 . Power on virtual equivalent 2 . Be thankful you no longer have to deal with physical servers This is a far more elegant approach that can ultimately save a great deal of time as well .
  6. 6. 6When Did Weather MetaphorsBecome So Common?Unless you’ve been living under a rock, you’ve If you think about this, disaster recovery is a naturalprobably heard that cloud computing is the next big benefit of using this type of resource-consumptionthing . You might have even seen a TV advertisement model . Disaster recovery is all about the unknown—or two talking about cloud computing . What is it, not knowing when you might need extraand can it affect, or better yet, improve disaster resources, how many resources or for how long .recovery? The on-demand elastic model of cloud computing is perfect for those rather “cloudy” requirements,We should probably begin with what cloud don’t you think?computing is . Some might say that when you lookup a definition of cloud computing, you’ll find this: But how do you get there? Most agree that the first“buzzword .” But there are actually some well- stepping stone is virtualization . After all, virtualizationaccepted characteristics that define what is and is the main underlying technology that allows thisis not considered to be a cloud of computers . cloud delivery model to be a reality .How I know my data center is ready to rain: So if you do have any aspirations for a cloudy1 . Shared infrastructure (or, plays well with others) disaster recovery future, the first step to take is2 . Rapid elasticity to virtualize as many of the pieces that make up3 . On-demand, self-service resource acquisition your disaster recovery plan and infrastructure model today as possible .4 . Per-use billing5 . Standard internet protocols6 . Measurablethenextbigthing
  7. 7. 7costsavingsgaloreWait…This Sounds ExpensiveVirtualization has already proven its cost saving traditional standby physical servers . Think aboutbenefits in production data centers around the it . The expensive duplicate infrastructure that dataworld . By reducing the sprawl created by years of centers used to be need can now be a thing ofaccumulation of commodity x86 servers, virtual the past . Eliminate the burden of keeping backupmachines are now accepted as a cheaper way to versions of each make, model and vendor version ofrun workloads . Not only do you dramatically lower all the servers you run . Replace all of it with a simpleyour server hardware costs, but you also lower the pool of virtual resources . This drastic reduction incost of powering, cooling and maintaining them . the infrastructure has an immediate reduction in theHowever, despite these cost savings, there are cost of your disaster recovery plan .still many barriers to fully adopting virtualizationas the universal platform of most data centers . But infrastructure isn’t the only thing that costsWhile everyone agrees that it is a cheaper way to money . Your time is ultimately far more valuable thanrun workloads, from a performance and security the gizmos you manage . Virtualization also reducesstandpoint, there are still concerns around whether the overhead and labor associated with olderit is a better method . backup and recovery-based protection approaches .Disaster recovery, on the other hand, faces far lessscrutiny when it comes to infrastructure changes . As Why bother with convoluted,such, it is an area where a fully virtual strategy could multi-step recovery processesbe adopted immediately . Since disaster recovery is when you can streamlineoften forgotten, better performing infrastructure will all your administrative tasksbe welcome by everyone involved, or sometimes the virtually?changes might even go unnoticed . (This is a goodthing, by the way . Getting everyone to notice yourbrilliant new disaster recovery plan sometimes takesan actual disaster .) With virtual machines, everything from day-to-day maintenance, to recovery and even testing can beBut even if better performing recovery capabilities as simple as a few clicks of a mouse .go unnoticed, the immediate cost savings won’t . Aspart of a disaster recovery plan, one virtual machine By implementing virtual disaster recovery, you canhost could take the place of up to twenty or more effectively get a double-whammy in terms of real costs savings . Cheaper to buy, and cheaper to run—what more could you ask?
  8. 8. 8 the hiddensecretHope Is Not a Strategy—the HiddenSecret of Disaster Recovery PlanningFor many years, the hidden secret of disaster Virtualization eliminates the problems associatedrecovery has been testing . Are you surprised? Think with a bare metal restore . There is no need to matchabout it for a minute . When’s the last time you tested hardware, or go through multiple steps just to get ayour ability to restore a workload? Now, how many test server up and running . This easy managementdid you test? And (here’s the kicker) what fraction allows you to simply select the virtual machinesof your total workloads was that? Backup and you want to test, create copies of them and powerrestoration is a real pain . Coordinating with everyone them on . Virtual networks also allow this processrequired from a facilities standpoint and getting to be completely non-disruptive to your productioneveryone to agree on a schedule is hard enough, let processes .alone having to rely on antiquated technologies liketape backup once you to get there . In cases where Safe and easy—what more can you ask for? Easythe difficulties associated with disaster recovery testing seems like a simple concept . But the realitytesting is too much, it simply never gets done . is, when you have real confidence in your DR plans, you will have confidence in setting service levels .The problem is that no testing or even infrequenttesting means no confidence . After all, how can you With the ability to easily and often run disasterbe sure your plans will work if you don’t try them out recovery tests, you can accurately measure theonce in a while? Even worse, in today’s business time you expect to take recovering workloads whenworld, where everyone expects you to publish needed . Instead of hoping that you can recoverservice levels and guarantee them no less, how from an outage in one or two days, now you cancan this be done without an accurate prediction of guarantee an accurate recovery time objectivewhat a worst case scenario will look like? Users now (RTO) and tell everyone about it, too!demand accurate expectations . One or two days, This can even be used as a competitive advantageor other ambiguous service levels are no longer for your company . Everyone loves routine, so peopleacceptable . How can you publish an accurate want to know that in the event of a disaster, you cannumber if you never run tests to prove it? help them get back to routine as quickly as possible .Wow, this DR stuff is really becoming a pain isn’t it? Publishing service levels you can be confident in areAgain, the magic technology can be virtualization . tremendously valuable for any organization .
  9. 9. 9 Allowable downtime for workloads: Required Availability Required Uptime hours/year Allowable Downtime /year 90% (0 .9) 7889 36 .5 days 99% (0 .99) 8678 3 .6 days 99 .9% (0 .999) 8757 9 hours 99 .99% (0 .9999) 8765 50 minutes 99 .999% (0 .99999) 8766 5 minutesFantastic! What’s Next?Go ahead and take some time to review your current disaster recovery in your organization . Now moredisaster recovery plans . This new virtual world than ever, it’s an important discussion to have,makes disaster recovery easy, but you still can’t particularly given the number of changes we’vemove to it without some effort . Everything will take talked about taking hold in data centers today .some time and planning . Use this guide as a bitof a jumpstart on what to be aware of, and where Here are some additional disaster recoveryto start . resources from Novell:Try initiating some conversations within your Product information: http://www .novell .com/products/forge/organization . Ask people how important they are http://www .novell .com/products/protect/(everyone loves that) . This will help you build abetter understanding of what the RTO needs really Customer Success Stories:are for each workload running in the data center . http://www .novell .com/success/hps_pharmacies .html http://www .novell .com/success/reed_smith .htmlUse this simple uptime-downtime chart aboveto talk to your users about the dollar-cost impact Whitepaper:these service levels might translate to . If your order www .novell .com/consolidated-dr-wp .pdfprocessing application, for example, was classifiedas having three nines (0 .999) of importance, how Webinar:many transactions do you expect would be lost or http://www .novell .com/media/drdelayed, and what would that cost if you allowed foreight hours of downtime? Does that align with thecost of providing that three nines guarantee?Remember, disaster recovery isn’t quite what it usedto be . With mixed platforms, virtualization clouds, costconfusion and testing, there’s an awful lot to consider .Hopefully this guide has given you some food for Arm yourself with as muchthought as you consider updating or changing how knowledge as you canyour organization looks at disaster recovery . find and start having some conversations about disasterArm yourself with as much knowledge as you can recovery in your organization.find and start having some conversations about