[ The PC Guide | System Care Guide | Backups and Disaster Recovery | Backup Scheduling and Media Rotation Systems ]

Light Security Rotation System

This scheme is suitable for a PC that gets light to moderate use. It provides better protection and a longer retention period than the minimum security system, while keeping the number of media sets small and the number of backups performed low.

This system uses four media sets, labeled "Mon", "Wed", "Fri 1" and "Fri 2". Starting on the first Friday, a full backup is done to "Fri 1", and then it is stored off-site. On the following Monday, an incremental backup is done to the "Mon" set, and on the following Wednesday, an incremental to the "Wed" set. When the next Friday comes around, use "Fri 2", store it off-site and bring "Fri 1" back on-site for use the next week.

This rotation scheme keeps the media cost for backups to a minimum, provides off-site protection and some redundancy. It does however expose the data changed during the week to some risk, so it is recommended only for lightly-used systems.

Next: Medium Security Rotation System

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