![]() ![]() For example, if the frequency is one week, specify a retention period of 2-4 weeks. (The frequency is how often the backup runs). Specify a time period that is longer than the frequency setting for the schedule. Table: Recommended retention periods for different types of backups ![]() The following table describes recommended retention periods for different types of backups. Schedule longer retention times for the separate policies without keeping all policies for the longer retention period. ![]() For example, place the files and directories with longer retention requirements in a separate policy. Plan to create separate policies for the data that falls outside of the retention requirement guidelines. Note the files or the directories that have retention requirements outside of these guidelines. Rely on the full backups for long-term recovery.Įstablish some guidelines that apply to most of the data to determine retention periods. If incremental backups only track work in progress toward monthly reports, expire the incremental backups sooner. For example, if day-to-day changes are critical, keep all the incremental backups in addition to the full backups for as long as the data is needed. Other data (preliminary documents, for example) can probably be expired when the final version is complete.Ī backup's retention also depends on what needs to be recovered from the backup. Some types of data (financial records, for example) have legal requirements that determine the retention level. The retention period for data depends on the likelihood of restoring information from media after a certain period of time. ![]()
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