Tape • Re: Best configuration to get Daily, Monthly and Yearly backups copy to tape

Hi Alan,

> "Retention in the daily media set is lower than the full backup frequency for an elder media set. Such a configuration may result in additional full backups being written to daily media sets." How does this impact daily retention and the number of tapes used?

Remember that with Tape, retention applies to the entire tape, so in practice, very little changes about your tape retention scheme.

However, periodically a full backup will be written to the daily media set. As noted in the User Guide, the Daily media set needs to refer to a Full backup in the Weekly media set, so if there isn't one to link the incremental backups to, a full backup will be placed in the Daily media set (if the source job doesn't produce periodic fulls, then the tape GFS job will create a Virtual Full backup directly on tape, no additional space on repository required)

As for best practice, it's however works best for you. Both GFS and Simple media pools will need that periodic full for the daily increments to link to, so I would just keep the GFS configuration and either enable the Weekly media set (1 restore point should be enough to avoid Fulls in the daily, but you may need 2), or simply let the fulls land in the Daily media set.

Statistics: Posted by david.domask — Jul 11, 2025 11:50 am

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