I set my media pool to protect media for 6 days - but I'm worried this will cause 2 x .VBK writes to tape?
Once tapes are overwritten by retention (i.e. does not contains restore points for the source job) tape job will pick all the restore points from the disk and create one additional virtual full backup for the set day (check under the Schedule button
at the tape job’s media pool for full backups) to split up the long incremental chain.
For instance if you have a forever forward incremental backup chain three weeks long it picks the first .vbk and then creates one virtual full for the last third week.
Can someone confirm my current settings would write 2 x .VBKs to tape per job?
Since your tape retention is shorter than disk retention, you will get the first full backup in the backup chain from disk plus one virtual full backup on tape for the set day.
Also, if I changed media pool settings to Do not protect data.. would that result in jsut 1 x .VBK written to tape?
No, since there is no guarantee that restore points on tape won’t be erased before they are gone from the disk repository.
The outcome I want it for just 1 x Virtual Full .VBK written to tape, per job
Is it possible to increase the retention for tape media (you may also decrease the retention on disk repository)?