ADSM-L

[ADSM-L] mediawait during backup to disk

2010-04-30 11:08:16
Subject: [ADSM-L] mediawait during backup to disk
From: Keith Arbogast <warbogas AT INDIANA DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Fri, 30 Apr 2010 11:07:35 -0400
What does it mean when a node incurs mediawait during a backup to
disk?  The disk pool was not full, or even close to the Hi Mig
trigger.  The mediawait condition is reported by TSMManager, not the
Activity Log, but the node record does show roughly 50 % pct
mediawait .  Several clients showed this condition in TSMManager and
the Pct Mediawait field, and all during the same period of the night.
All tape drives would have been busy during this time, writing offsite
backups of disk pools at our other data center.

With hopeful best wishes,
Keith Arbogast