We are setting up SAN replication for DR.  I need some information on how
to handle the TSM database.

TSM 5.1.10.0 - soon to be TSM 5.3.(2?).x.
AIX 5.2 ML-3 - soon to be AIX 5.3 ML-2+

For the last seven years we've backed up the TSM DB to tape and sent it
offsite.  When we've needed to restore the DB, we're restored from tape.
Mostly works OK except a little slow.

Now we have an EMC Clariion CX500 SAN and we're setting up SAN-to-SAN
replication with our warm site.  We will have a TSM server staged at that
site but it will be OFFLINE because of a shortage of live Fiber ports in a
non-DR state.  Our drop-ship contract includes an FC switch.

What we would like to do is backup the DB - full and incremental - to the
SAN and replicate those backups to the warm site's SAN.  Recovery would
involve connecting the staged recovery server to the target LUN and then
restore the replicated database volumes.

Questions:
* Would that work??
* If I wanted to continue the DB backups to tape in parallel - in other
words, maintain two DB backup sequences - how would I do that?
* The Backup DB command offers a Type=Image option.  What does one do with
a DB image?

Thanks in advance.

Tab Trepagnier
TSM Administrator
Laitram, L.L.C.