Backup strategy

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Backup strategy

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Backup strategy

  1. 1. Backup strategy Making copies of data so that these additional copies may be used to restore the original after a data loss event. Regular backups Store backups in different locations
  2. 2. Media Tape Systems Cheap but slow Hard Disk / RAID Faster, more expensive
  3. 3. Methodology Full Copies all data whether it has been changed since last backup or not Differential Only backup files which have changed since last full backup Incremental Only backup files which have changed since last backup of any kind
  4. 4. Rotating Backup Media Grandfather-father-son
  5. 5. Credits Int 2 / Higher Information Systems – Using Information - Backup Strategy Produced by M. Cunningham for the City of Edinburgh Council 2004 All images licenced under Creative Commons 3.0  Making a backup restore By Björn Söderqvist  Alarm Clock 3 By Alan Cleaver
  6. 6. Credits Int 2 / Higher Information Systems – Using Information - Backup Strategy Produced by M. Cunningham for the City of Edinburgh Council 2004 All images licenced under Creative Commons 3.0  Making a backup restore By Björn Söderqvist  Alarm Clock 3 By Alan Cleaver

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