Steve,
Our Tivoli setup was actually done by an outside group. Here is how it
is currently run:
backup clients to disk where possible tape where not
backup diskpools to copypool
backup tapepools to copypool
migrate disk to tape.
backup DB
expire inventory
The problem with this is that what there is a massive amount of data
the migration is not done before the db backup. SO, I can't be sure
that everything is offsite on the copy pool. Flipping the schedules
around would fix this. I was attacking it by lets get the migration as
fast as possible.
Shouldn't be any draw backs this way.
Thanks!
Dave
>>> Steve_Harris AT HEALTH.QLD.GOV DOT AU 4/28/2004 7:34:33 PM >>>
Dave
You can set maxproc on your diskpool and run as many processes as you
have drives. That works fine.
But, why is the disk to tape dump speed important to you?
Most shops run a cycle of
backup clients to disk where possible tape where not
backup diskpools to copypool
backup tapepools to copypool
backup DB
expire inventory
migrate disk to tape.
In my shop we leave the data on disk until about 5PM so that most
restores are done from disk rather than tape. But, we could start
migrating as early as about 11AM with our current volumes. TSM is very
efficient with its tape drives as compared with other competing
products. As long as the migrate is complete before the next backup
cycle that's enough.
Or do you have some sort of special requirement that I don't
understand?
Regards
Steve.
>>> dbenigni AT LUTRON DOT COM 29/04/2004 6:15:27 >>>
Steve,
I could run the backup stg more times, that a different idea that I
have not thought about.
After looking at the timing the making the copy pool is very fast.
The
time hog is migrating the disk pool to the primary tape pool. Now,
besides throwing more drives at this, is there any way to make this
process quicker?
Thanks for the insight.
Dave
>>> Steve_Harris AT HEALTH.QLD.GOV DOT AU 4/27/2004 7:18:12 PM >>>
Dave,
The maxprocess idea is a good one and will help, but yes, you will
send
more tapes offsite.
As an alternative, could you run the backup stg process more often,
say
two or three times over the night?
Then the last part of the copy will only take a small amount of time
and your window is reduced.
HTH
Steve
Steve Harris
AIX and TSM Admin
Queensland HEalth, Brisbane, Australia
>>> dbenigni AT LUTRON DOT COM 27/04/2004 23:35:36 >>>
For our DRM procedures we have a script that runs nightly that does a
backup of all the primary storage pool to our copy pool. Currently on
a
daily basis we are taking 1 tape of data and 1 database tape off site.
I would like to reduce the windows which it takes the copy pool to be
created. I believe by doing the backup with the maxprocess directive
that would allow me to mount more tapes during this process, but this
would increase the number of tapes going off site. Does this sound
correct to everyone? TIA for the input.
Dave
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