I had this same trouble a while ago, so I made it my 'project' to find out
where these phantom tapes where going.  What i found was that my
db backups that i did once a day were sometimes slipping through the
cracks.  The reason for this was due to pruning the volhistory of
type=dbbackup.

What was happening was everyday i took a db backup and kept 7 versions
(a week), so my corresponding prune was:

delete volhistory type=dbbackup todate=today-7

Well, I would get somewhat lazy and not do my vault retrieve everyday like
a good boy and therefore after 7 days ADSM had not idea where that tape
was.  (at least it did not have important disaster data on it)

Two ways for me to fix:  (1) be very rigorous about retrieving tape from vault
or (2) be lazy and just extend my prune days to something like:

delete volhistory type=dbbackup todate=today-20

I chose the later...  :-)

cheers, Ben



Wes Lewison wrote:

>         I've been noticing that over the past couple of months, once and a
> while the vault retrieve list will be missing a tape or two from the
> previous day.  Nothing has been done to the tape... it's still sitting
> offsite with no changes to it's mode since the day before.  I think there
> might be a timeout for returning tapes and it's going past that...  Does
> anyone know if this variable exists and how to set it?
>         A couple of days ago i went through the vault and library and found
> over 100 tapes that neither of our two adsm servers knew about any longer...
> I was wondering where they were all going.  Guess they were forgotten?
>
> -Wes Lewison