> On Oct 2, 2007, at 4:36 PM, Nick Laflamme wrote:
>
> > Anything on tape should have been resident in the disk pools when they
> > were backed up.
>
> Nick -

Also, check "Maximum Size Threshold" setting on the disk pools.  If it is
not set to "no limit", then any file exceeding the maxsize allowed in the
disk pool will go directly to tape.

>
> You're speculating, without analysis of what landed in each level of
> the storage pool hierarchy.  You can most readily utilize the Query
> CONTent with a negative Count value to do spot checking.  Further,
> pore over the Activity Log for evidence of an over-HIghmig storage
> pool migrating to tape during backups.
>
> We lack sufficient details on the characteristics of your site
> processing, but you are assuming that all objects should go to the
> disk storage pool...  In fact, do *all* your management classes
> specify that?  If not, and you are backing up Windows clients, then
> it may well be that directories are going to tape rather than disk,
> per TSM's directory preservation rules.  Your Activity Log would then
> show tape mounts during the backups, and your client stats (including
> in TSM Accounting) would show waits for media.
>
> Dig in and find out the particulars there.
>
>     Richard Sims
>
>

Steve Roder
University at Buffalo
(spr AT buffalo DOT edu | (716)645-3564)