TSM Admin Group,
Sorry to bother the group with this yet again. I know it was been
discussed before, and I wadded through many messages on ADSM.org
archives.
I have TSM 4.1.3 running on an H80. My 100GB initial disk storage pool,
which migrates to a AIT-2 tape storage pool has me concerned. I purge
this pool to tape each mid-morning after backups finish, and again each
night before my evening backups start.
Now I’m a firm believer in a DB Copy-pool (TSM mirror) however, no one
talks about a disk storage pool copy-pool. If you have a large initial
disk storage pool (ours is 100GB and could grow significantly if we get
another SSA Drawer) there is a real threat of a disaster if you loose a
disk in that disk array.
I was planning to run with a 100GB disk storage pool, and then have that
mirrored (via TSM) to a disk storage pool copy-pool. I did this on a
older version 2 server years ago.
So my question is if you have a significant amount of disk. In this
case 200GB (six 36GB disks separated into two 3 disk volume groups).
What is the hot setup?!?
Here are the configuration scenarios I am considering:
1) Setup two 3 disk volume groups, with one vg as the initial disk
storage pool, and the other a copy pool (TSM mirror) -- which is what I
intended to do, yet doesn't seem to be an option in TSM 4 any more.
2) RAID 5 the six 36GB disks into one volume group, and utilize AIX RAID
to keep the disk pool healthy.
3) Glome the disks into one 200GB disk storage pool, and continue my
daily purge procedures.
4) Setup disk vgs as in step one, creating the initial disk storage
pool, and the another disk storage pool with the pool type of copy, and
backup the initial disk storage pool at specific times -- this is what
TSM support recommended.
Any opinions and/or ideas would be appreciated.
Many Thanks,
_/_/_/ _/_/_/ Jim Jepson, L&RE System Admin & Networking
_/ _/ Apple Computer, Inc.
_/ _/ 3 Infinite Loop Cupertino, CA 95014
_/ _/ _/ _/ Direct: 408-974-6368 FAX: 408-996-3783
_/_/_/_/ _/_/_/_/ MS:303-1SC, E-MAIL:
