On Fri, Aug 1, 2008 at 8:32 AM, Keith Sudbury <keith AT netzensolutions DOT 
com> wrote:
> Hi,
>
> I have an LTO-3 drive on my server and currently my backups re only
> about 100GB, and I could (and currently am fitting multiple backups on
> one tape). I am obviously changing the tape each day etc (its not the
> same tape) I have a different tape for mon - thursday and friday1
> friday2 etc
>
> But I am wondering if I should be using *Use Volume Once = Yes *which
> would then mark the tape FULL after it has used it once. If I don't do
> this I will eventually get to a day when only half a backup fits on the
> end?
> *
> *Or is it fine to leave more than one backup on a tape?
>
It is fine. I have had > 30 backups on a single LTO2 tape.

>
> I am ejecting my tapes with "umount LTO-3" is this ok? or should I be
> using "release LTO-3" and then doing umount?
>
Release is better because it does not remove the drive from bacula's
control so that if you reinsert the tape you will not need to mount
it. If you umount a tape bacula will not have control of the tape
drive until you issue a mount command inside of bacula.

>
> Does bacula rewind the tape if i use release?
>
Release and unmount both eject the tape so the drive will have to
rewind the tape being that LTO media is single reel and the drive
contains the second reel.

> Will it cause a problem if I use release and have multiple backups on a
> single tape?
>
You will have to reinsert the tape in the drive before the next backup.

John

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