Hi All,

I've just come back from two weeks working on something else and caught up with 
the list, and I can't help jumping in with this one even if it's late.

How about

backup TSM DB  and shutdown current TSM instance (henceforth this is TSM-A)
create second TSM instance on same physical machine
Restore TSM DB to this instance (henceforth TSM-B)
TSM-B: delete disk volumes, disk storage storagepools, all copypool volumes and 
all copypools. Checkout with eject all primary tape volumes.  vary all tape 
drives off.
TSM-A: checkout without eject all primary volumes.  Mark all primary volumes as 
destroyed.
TSM-A: continue operations as normal.  over time run selectives on all nodes to 
repopulate onsite tapes (or recover from copypool)
TSM-B: normally keep this down.  during slack tape usage times, bring it up to 
run reclaims to a high percentage (say 90-95%) to optimise tape usage, use move 
data to refresh tapes etc.

When a new TSM version comes along, apply it to both instances.
This way no new copies of data are needed immediately, TSM versions are kept up 
to date, "frozen" tapes are refreshed and restore from the "frozen" versions is 
easy and quick.
The only downside is that TSM-A has its derriere exposed to a single tape 
failure, although any data should be available from TSM-B if required.


I think that one is about $0.04 worth


Steve Harris
AIX and TSM Systems Admin
Queensland Health, Brisbane Australia.





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