Hi,

In mixing 320 and 220 media, I believe we have a problem I would term show
stopper.

We are going to have each robot at each campus with the following
configuration.

ERP storage at site A will use 4 each SDLT320 drives and a storage unit
defined for just ERP
NAS storage at each site will use 1 or more SDLT320 drives, these will be
direct attached to its filer.
All other storage at each site will use SDLT220 drives

Veritas by default will assign a sdlt320 drive as using media type dlt2
Veritas by default will assign a sdlt220 drive as using media type dlt3
(This seems reveresed to me, but I have verified this is truw)

All robots get tapes from the Scratch pool which is currently defined as
using media type dlt3

Because we use the scratch pool, it seems we will have to have special bar
code rules for both ERP and NAS tapes?
The ERP can be done, since there is only one volume pool called ERP_Full (we
only do full backups of ERP data on a daily basis)
For NAS however, we use two volume pools NDMP_Full and NDMP_Incr.
We would have to have the operators manually move tapes into these pools so
there were always unused tapes available (not feasable)

If we just have every drive, be of type dlt3 media type, then at least at
nhq, we will not know which drives get used, since you can't force a
particular drive to be used by a specific storage unit.  I don't even know
if this would work since the drives are not the same

It would have been sooooooo much easier for use to stay with SDLT220 drives,
and add more drives instead of going to newer technologies.

I need either a better solution, or to put all our new sdlt320 drives in the
one NHQ robot, which was not the intended use of these more expensive
drives.

Thanks in advance fo rany suggestions

Stephen Darragh