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Disaster Recovery Planning

Disaster Recovery Planning. IT:Network:Applications 10-150-188. Disaster Recovery Planning. Preparation Documentation Security Recovery Backups Recovery Software. Preparation. Identify vulnerabilities Perimeter devices Security devices Remote access gateways Routers Remote offices

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Disaster Recovery Planning

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  1. Disaster Recovery Planning IT:Network:Applications 10-150-188

  2. Disaster Recovery Planning • Preparation • Documentation • Security • Recovery • Backups • Recovery Software

  3. Preparation • Identify vulnerabilities • Perimeter devices • Security devices • Remote access gateways • Routers • Remote offices • Etc. • Exposed services • Email • Web • Intranet • VPN • Remote Administration • Etc.

  4. Preparation • Identify mission critical services • Mission critical refers to any factor of a system (equipment, process, procedure, software, etc.) whose failure will result in the failure of business operations. That is, it is critical to the organization's 'mission'. • (http://en.wikipedia.org/wiki/Mission_Critical) • What can we do to prevent it? • What can we do to recover from it?

  5. Preparation • Physical measures • Fire Suppression • Security measures • Proximity badges • Biometrics • File System • Rights/Permissions • NTFS vsShare • Auditing • Authentication • Password strategies

  6. Documentation • Configuration • At a minimum • Step by step system procedures from building a server to creating a folder • Hardware (Bios settings) • What is required to get a system restored • OS • Version; License Numbers; Administrator Password; • IP Addr; Services Installed; Services Config • Helps to check configuration • Helps to rebuild if needed

  7. Security • Security Updates as soon as feasible • Service Packs • When your third party software blesses it • Some software packages can be 6 months behind • Driver Updates • Be sure to test • BIOS Updates • Be sure to test

  8. Recovery • “It isn’t if the hard drive will fail, it’s when will the hard drive fail.” • User “oops” or PEBKAC • Accident • Intentional • 95% of data loss comes from inside

  9. Backups • Full backup is always best • Incremental • Restore requires all good incremental from last Full • Differential • Restore requires last good differential and last full • Both handle a file based on the archive bit status

  10. Backups • Backup Media Rotation • Grandfather – Father – Son (GFS) • G: Monthly full; F: Weekly full; S: Daily • Others available: (e.g., Tower of Hanoi) • Think powers of 2 • setA every two days; setB every 4 days; setC every 8…

  11. Backups • Daily backups • Should keep the previous backup off-site • Rotate off-site daily • Quick and easy to restore • Full backup can be rotated every two weeks at a minimum. • FridayA is offsite until FridayB is run

  12. Backups • Weekly/Monthly • Kept as long as “needed” • Keep secured • Theft • Larger companies outsource backup storage • Off-site courier storage • Third party companies offering remote backup services (cloud-ish data backup) • Read Service Level Agreements (SLA) thoroughly • Prudent to have attorney review

  13. Backups • Windows Server 2008 R2 does not support tape devices • Backups are trending towards disk to disk backups • System imaging is gaining popularity • Can backup to file or to a remote system

  14. Recovery Software • Doesn’t need to be fancy • Microsoft Backup works • GUI is easy to use • Command line options— • Wbadmin.exe • Wbadmin.exe START RECOVERY –version:09/30/2010-18:30 –items:d:\common –itemtype:File –backupTarget:E: -recursive

  15. Recovery Software • You get what you pay for • Symantec Backup Exec • Backup Assist • Storagecraft • Arcserve

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