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Disaster Recovery Planning

Disaster Recovery Planning. IT:Network:Applications 10-150-188. Boy Scout Motto: Be Prepared. What is the worst that could happen? It will When is the worst time that could happen? That’s when it will What can we do to prevent it? What can we do to recover from it?. Avoidance: Security.

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Disaster Recovery Planning

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

  2. Boy Scout Motto: Be Prepared • What is the worst that could happen? • It will • When is the worst time that could happen? • That’s when it will • What can we do to prevent it? • What can we do to recover from it?

  3. Avoidance: Security • Physical • Fire Suppression • Floods? • Who’s there? • File System • Rights/Permissions • NTFS vs Share • Authentication • Password required • Change passwords

  4. Preparation: Documentation • How are we configured? • At a minimum • Step by step system procedures from building a server to making 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

  5. Updates: The Bleeding Edge of Technology • 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 ? • If it ain’t broke…well, test • BIOS Updates ? • See above • Optional Updates ? • Use Test Machine(s) / Lab

  6. Recovery: Backups • “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

  7. Recovery: Backups • Full backup is always best • Incremental • Differential • Both handle a file based on the archive bit status

  8. Backup Best Practices • Tape 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…

  9. Backup Management • 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

  10. Backup Management • Weekly/Monthly • Kept as long as “needed” • Keep secured • Theft • Larger companies outsource backup storage • Third party companies offering remote backup services (cloud-ish data backup)

  11. Backup Hardware • 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

  12. Backup 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 • You get what you pay for • Symantec Backup Exec • Backup Assist • Storageworks

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