How about this,
1. Primary copies.
Set up another storage pool so that your migration hierarchy is
diskp->tapep1->tapep2
Every day backup to diskp then migrate to tapep1.
Limit tapep1's number of volumes to an appropriate percentage of your library.
Set a migdelay on this pool of at least one day, and longer if you can afford
the space.
Periodically (daily or weekly depending on data volumes and library capacity)
alter tapep1's migration percentage to migrate down to say 75%, then alter it
back to 100%
After the tapep1->tapep2 migration finishes, run a move media on all full
tapep2 tapes to get them out of the library.
TSM works best if you can keep a whole day's backups on disk, but this stuff
will still work if you go direct to tape.
2. Secondary copies.
Assume that a tape copypool exists called tapec1
Whilst your daily backups are still on disk, run a backup stg diskp1 tapec1.
This makes a tape copy of last night's backups
Then run a backup stg tapep1 tapec1. This makes a second copy of anything that
went direct to tape or which was migrated from disk to tape before the backup
of diskp1 was run.
Finally run a backup stg tapep2 tapec1. This should normally do nothing. If
it doesn't investigate why.
Run a database backup to tape
Manage off-siting of secondary copies with home-grown scripts, the DRM
component of TSM or the Autovault product.
Regards
Steve Harris
AIX and TSM Admin
Queensland Health, Brisbane Australia
>>> horse AT AUSTIN.IBM DOT COM 07/06/2002 0:25:28 >>>
Hi *,
Relative newbie, pls be patient...
I have successfully created a TSM PD/PS/MC/POOLS and backed up a 265GB
filesystem to TAPE. The TAPE pool definition is:
VDE: Nolimit
VDD: Nolimit
REV: Nolimit
ROV: Nolimit
Overflow Location: offsite
My question(s):
What is the best method to 1) check the tapes out, 2) ensure the data is
keep FOREVER, 3) is recoverable, at anytime, 4) whatever I am missing!!!
AHIA, thx...
Mr. Lindsey Thomson
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