Thanks for the reply John. There is 5 nodes associated with this particular tape
storage pool, with a total figure of 14 filespaces shared between them. The re-use
delay parameter is currently at 0 and the migration processes is set to 1. I did have
migration processes at 2 but scaled it back to 1 to see if that would help with the
tape use.
I'll keep looking and see if there is anything else out of the ordinary.
Thanks,
Gordon
[EMAIL PROTECTED]
THERN.CO.UK To: [EMAIL PROTECTED]
Sent by: cc:
[EMAIL PROTECTED] Subject: Re: 'Maximum Scratch
Volumes Allowed' clarrification
10/10/2003 06:06 PM
Please respond to ADSM-L
Gordon,
Maxscratch is just a value you set high enough to prevent failures due to
running out of storage.
It will not use more tapes
Look at your reuse delay values
Try a move data against the 6 empty filling tapes
The number of filling tapes in a collocated pool should bear some
relationship to either the number of nodes or filespaces depending on the
type of collocation.
If you have multiple filling tapes for the same node/filespace then you
probably have scheduling issues
John
Gordon Woodward <[EMAIL PROTECTED]>@vm.marist.edu> on 10/10/2003
12:23:15 AM
Please respond to "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]>
Sent by: "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
cc:
Subject: 'Maximum Scratch Volumes Allowed' clarrification
Hi all,
I'm after some clarrification about the stgp maxscratch setting for one of
our storage pools. We recently decommissioned a server and removed all it's
data out of TSM, thus freeing up a lot of tapes for other uses, but I'm now
finding that our collocated storage pool has decided to hoard all our
scratch tapes for itself, even though it doesn't put any data in them.
Our collocated tape storage pool currently has 32 tapes allocated to it,11
of which are filling with only 5 tapes of those having data on them. The
Maximum Scratch Volumes Allowed setting for this storage pool is set to
100, which is a tad excessive so I want to pull it back to a smaller
number. Would setting this maxscratch paramater back down to say 5 be
reasonable without causing other problems? This particular storage pool is
lucky to fill one tape a night and it reclaims about 1 tape a day, I don't
want it to keep stealing all available scratch tapes for itself as our tape
library is already at capacity.
Thanks in advance!
Gordon Woodward
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