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Disaster Recover : 10 tips for disaster recovery planning


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When planning for Disaster Recovery it is essential to have a clearly defined set of objectives that are based on your businesses needs .InTechnology's Product Director for Data & Cloud Services, Stefan Haase, provides tips for any business to consider when putting together their disaster recovery plan.

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Disaster Recover : 10 tips for disaster recovery planning

  2. 2. Top 10 Tips for Data Recovery• What would happen to your business if you experienced acatastrophic data loss?• Would your business survive?• The statistics are alarming, 43% of businesses never re-open after a major disaster.• A well planned data recovery strategy can deliverimproved resilience with predictable costs and nounscheduled downtime.• It will also allow you to sleep at night!
  3. 3. 1. Identify your data recovery needs• Data Recovery is vital for the survival of your business.• Your data defines and separates your business from anyother in the market.• If failure should occur at any level of your infrastructure itcan be felt across the business.• You must ask yourself, how would your business survive adisaster?• And what provisions do you have in place for yourbusiness to continue after?
  4. 4. 2. Understand the risks• Data loss can range from the accidental deletion of files tothe failure of your entire site.• Without data recovery precautions in place you areputting your organisation at risk.• IT failure is the most common threat to businesses• The threat of fire and natural disaster can have the mostdevastating consequences.• Findings from a CBI study indicate that a high level ofdisruptions in 2008 and 2009 were due to extremeweather incidents such as snow, flood or high winds
  5. 5. 3. Assess the criticality of your data• The key aspect of data recovery is understanding just howcritical your data is.• By compiling an assessment on the risks to your businessyou can then develop a tiered recovery strategy– Mission critical data– Important data– Legacy data• This will ensure all levels of your infrastructure can berecovered in the event of a disaster
  6. 6. 4. Assess how easily you recover a file• Data backup is required by all businesses• With legal requirements tightening and growing datavolumes, tape backup is no longer reliable /cost effective• Managed Online Data Backup Services enable you toinstantly recover files within seconds• They deduplicate data to make the most of your storage;saving resources and reducing costs.• Data is securely encrypted during the backup and is readyfor recovery if needed
  7. 7. 5. Consider impact of a server failures• Assessment for data recovery calls for you to consider themaximum amount of downtime you can afford for anysystem before the impact becomes critical to businessoperations.• You can define your data recovery policy according to:– how critical that system is– the chance of failure– how much you are willing to spend to minimiserecovery time
  8. 8. 6. Assess your system recovery• The process of re-installing an operating system, itsservice packs and updates, along with applications andnew device drivers can take hours or even days,contributing to your overall recovery time.• Prior to the lengthy process of application installation anddata restoration, a compatible system is required, addingyet more downtime to that ticking clock.• The reality is that system failure could result in over weekof downtime till your system is back up and running
  9. 9. 7. What is the impact of downtime?• For most organisations, to be without a particular system,for any length of time could result in the loss of business.• Should the system running your website fail, the chancesare customers will not return.• It is vital that you can recover your systems as quickly aspossible, reducing downtime and limiting loss of business.• Essentially, any length of downtime can be harmful toyour business, but extended downtime could spell out theend
  10. 10. 8. Assess system recovery methods• Assessing the critical levels of your data and systems,allows you to set a data recovery policy that works best foryou depending on your Recovery Point Objective (RPO).• Bare metal recovery to recover to either your system tosimilar or dissimilar hardware.• Online disk backup allows you to increase the frequency ofyour backup for more dynamic and rapidly changing data.• You have the flexibility of backing up more frequently oncritical systems and less frequently on non-critical systems.
  11. 11. 9. Consider your network for DR• Putting a resilient data recovery policy in place insuresyour data against failure, but what about your network?• Your network infrastructure is vital to continuous runningof your organisation.• A disaster on site will take out your network and data.• Hosting your network with a service provider offers you afully managed solution for network recovery.• Your network will be accessible even in site failure,ensuring that your business continues as normal.
  12. 12. 10. Consider to offsite your IT estate• Managed hosting is the ultimate business continuitysolution.• Not only can you host your data, systems and networksafely offsite in the service providers cloud; you can alsoprotect your telephony systems in the same way.• Service providers such as InTechnology offer a portfolio ofhosted cloud services to protect your entire infrastructure.• Hosting your IT infrastructure in the cloud covers everyaspect for business continuity and allows you access toextra computing resources when you need them.
  13. 13. What options do I have?• Primary environment in the cloud• Primary communications services in the cloud• Data recovery services– Online Backup– Online Replication– Virtual DR environment
  14. 14. Primary environment in the cloud• Infrastructure as a Service enables you to access one ormore virtual machines, and run applications• Virtual servers run on physical servers located in a serviceprovider data centre.• The virtualisation software abstracts processor, memory,storage and networking resources into multiple virtualmachines, delivering greater utilisation and flexibility, andunparalleled levels of performance and scalability.• Due to data centre and physical infrastructure resilienceand the fact that the environment is already offsite, DRrequirements are minimal
  15. 15. Data recovery services• File Recovery Services– Unintentional deletion of data from aserver– Recovery of a single file back to anotherwise working system• System Recovery Services– Hardware or software failure of a server– Rebuild of a specific server at currentsite• Site Recovery Services– Complete failure of a customer office– Require rebuild of applicationinfrastructure at alternative site
  16. 16. File Recovery Services
  17. 17. Customer process for file recoveryComputer RoomNetworkServersStorageOperating SystemsApplicationsApplication Data Copy of Application DataCustomer Site Service Provider Data CentreSpecified file is recoveredon-line from backup data
  18. 18. System Recovery Services
  19. 19. Customer process for system recoveryComputer RoomNetworkCopy of Application DataCustomer Site Service Provider Data CentreServersStorageOperating SystemsApplicationsApplication DataStep 1: Customer orders andbuilds replacement serverStep 2: Customerinstalls O/S andApplication SoftwareStep 3: Backup Datais delivered byservice provider tocustomer site, eitherover wire orphysically byportable storage
  20. 20. The problem is downtime• To recover 1TB of server data takes a minimum of 28hoursCopy 1TB to portable storage: 10 hours @ 100GB / hourShip storage to site: 3 hoursRestore to new server: 15 hours @ 70GB / hourTOTAL 28 hours• Larger data volumes take proportionally longer, andrecovery over the wire is not an option for data volumes ofthis size• This is in addition to the time to take delivery of a newserver install the O/S and application software
  21. 21. Online Backup & Virtual DR ServersCustomer Site Service Provider Data CentreOperating SystemsApplicationsVirtualHostingServiceApplication DataStep 1: Customeractivates DR virtualservers with pre-loadedsoftware imagesStep 2: Backup data fromis recovered direct tovirtual serversUsers log into remote virtual servers
  22. 22. Site Recovery Management
  23. 23. Site Recovery• Site Recovery is a variation of the System Recoveryoptions with the below exceptions:1. There will be multiple servers to simultaneouslyrecover, so restoration times need to be considered2. Other systems, such as telephony, will also be affected3. Staff will also need alternative premises to work at
  24. 24. Data & voice site recovery servicesDR Office FacilityService Provider Data CentreOperating SystemsApplicationsVirtual HostingServiceApplication DataUsers remotely access voice& data servicesHosted IP TelephonyVoice ServicesData Services
  25. 25. Service optionsOption DescriptionOff-site Backup Standard MBS ProductVirtual DR ServersRestore MBS data to a pre-configuredvirtual serverHosted VoIP withDRCalls to the failed site are re-routed tostaff using a Hosted PBX
  26. 26. SUMMARY/• You need to consider your DRrequirements end to end• Critical systems and critical data• Consider moving primary ITenvironment into the cloud• By combining existingbackup, virtual hosting, voice, co-location, and storageservices, service providers likeInTechnology can address fullscale DR requirements