RE: P7 V7R3 to P9 V7R3 migration recommendations / suggestions

Sure BRMS knows which library is on which tape. Especially if you
followed the instructions and restored that last little save BRMS does at
the end to get this data.
The reason you submit them as four jobs (one for each drive) is for speed.
Let's say LIBA is huge. LIBB-R are miniscule.
You would look at the BRMS recovery information and run one job to restore
from VOLUME1, one from VOLUME2, one from VOLUME3 and one from VOLUME4.
This way libraries LIBB-R could be in the process of restoring while LIBA
is restoring.
You don't have to do it this way, but it saves time.

In typical HA shops the journal receivers are all stored in one library,
for example #MIMIX. And normally named with a special character like # so
that it's one of the first restored. If you store your journal receivers
in the same library as your data files then it doesn't matter.

A true HA purist (not me) would store their receivers in a secondary ASP
to keep them on different disk drives than the data files to minimize
exposure and help with recovery.

In summary: If the receivers are not in the same library as the datafiles
then the receivers must be restored first. Must. It will try to write
restore operations to the receivers and tank if they are not there.


Rob Berendt