Hello, unfortunately volume recycling doesn't work like I expected it.
I have a pool with 2 volumes (tapes), which I use for duplicating (hdd)
backups every weekend.
So if one tape is in the drive and the house is on fire, I have the tape
from the weekend before.
I have a “Use Duration” of 3 days and a “Volume Retention” of 9 days, so
after 12 days, the volume will get purged and recycled – theoretically.
I haven't managed to get the automatic recyling to work yet, it's a new
setup and I did the retention periods wrong on the first shot, so I
manually purged the volume and set to recycle.
The problem is:
Recycled volumes keep their First-Written-Timestamp, so it will be
always marked “Used”, since “Use Duration” was intentionally lapsed for
the first volume usage. But when recycling a volume, there should begin
a new “Use Duration“ period!!!
Also, in my opinion, the label of the volume should be recreated when
recyled, not copied (see excerpt below for obvious auto-label reason).
But what I don't understand at all is why the timestamps are not reset
at volume recycling. That can't be intenionally, is it?!??!!?
Thanks,
-Harry
Config excerpt from the affected pool resource:
Pool {
Name = LTO4-weekly-Dups
# Description:
# Pool for copies of differential-backups from harddisk store (for
# disaster-recovery).
Maximum Volumes = 2
Pool Type = Backup
Storage = Tandberg-LTO4
Volume Use Duration = 3 days
Volume Retention = 9 days # keep 9 days after last write
Recycle Current Volume = yes # prune currently mounted tape
LabelFormat =
"weekly-rotation-${NumVols:p/2/0/r}_${Year}-${Month:p/2/0/r}-${Day:p/2/0/r}"
}
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