Do you have the opportunity to use a scheduler that can track resource
use? We use a set of ^M scheduled jobs using a resource count and pool.
^M will feed in stgpool backup jobs according to how many drives they
will want and how many are free. It's the best way so far we have found
of maximizing drive use during multiple stgpool backups, unless you
start to cancel procs and re-submit the backups to use more drives as
they come available, or using some trickery to get backup stgpool
processes pre-empted; - I believe then the pre-empted threads work is
distributed amongst the processes that are left (or tacked on the end of
one..)

Which is a minor gripe of mine; if the pre-empt can allocate work to
other running processes for that backup stgpool, it feels like the
ability to add/remove drives (processes) to a backup stgpool process on
the fly is there but just out of reach....

Matt.


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Steve Schaub
Sent: Wednesday, June 29, 2005 4:12 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Storage Pool Backup Issue

Joni,

Sounds to me like you need 6 scripts that all use wait=yes, and you will
have to balance which pools get backed up in each script.

-steve

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Joni Moyer
Sent: Wednesday, June 29, 2005 10:59 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] Storage Pool Backup Issue

Hello Everyone!

I have an issue of drive shortage and I would like to cascade my backup
jobs
of my storage pools.  I know that you first want to make the disk to
offsite
tape copy and then the onsite tape to offsite tape copy for each storage
pool.  My question is, how do I combine all 14 jobs in a cascading order
so
that they are only using a maximum of 6 drives at a time?  I thought
about
putting them all within a script and running them with wait=yes but I
don't
think that will give me exactly what I want to do.  If anyone has any
suggestions I would appreciate the input!  Thanks!

********************************
Joni Moyer
Highmark
Storage Systems
Work:(717)302-6603
Fax:(717)302-5974
joni.moyer AT highmark DOT com
********************************
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