Computer Security

This article describes in detail the Child, Parent, Grandparent backup cycle.

Child, Parent, Grandparent Backup Cycle

Backup Name Frequency Storage Location Description
Child Daily Current set on-site, others off Four sets of media, each with four sub-sets sufficient to backup data (typically using a differential or incremental backup) Monday through Thursday. Rotate the four sets so a different one is used each week and rotate the sub-sets so a different one is used each day.
Parent Weekly Off-site Five sets of media, each with sufficient capacity for a full back-up. Rotate the sets, using one each Friday of the month to make a full back-up.
Grandparent Monthly Off-site Twelve sets of media, each with sufficient capacity for a full back-up. Rotate the sets, using one for a full back-up on the last Friday of each month of the year.



Bruce Miller, 2003, 2007, 2014