Re: [Veritas-bu] Understanding DSSU
2010-09-02 13:17:28
Are your DSSU's configured as disk pools ? That may be a step in the right
direction.
________________________________________
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu [veritas-bu-bounces AT
mailman.eng.auburn DOT edu] On Behalf Of Nate Sanders [sandersn AT dmotorworks
DOT com]
Sent: Thursday, September 02, 2010 12:56 PM
To: Veritas List
Subject: [Veritas-bu] Understanding DSSU
We finally made it to NBU 6.5.6 and I was under the impression it had a
feature that 5.1MP6 did not. I thought that DSSU on 6.5.6 was supposed
to have the ability to spill over from one storage unit to the next.
Meaning that if a single job was larger than the smallest DSSU it could
overflow into another one. Or, if the if one DSSU only had 300GB free
and the job was writing there, but was 500GB in total, the last 200GB
would spill over.
I've been having some really weird problems in DSSU since upgrading. I
saw a 20GB job fail 5 times last night. I would flush all 6 DSSUs and
rerun the jobs only to watch them all fail with Error 129 (unit is full).
Here's our setup:
Six 700GB DSSU's
dssu1 & 2 == Storage Group for Production OS backups
dssu 3, 4, 5 == Oracle Disk Staging
dssu 6 == Staging Server environment's Disk Staging
All DSSU's are set to 15% low water mark and 90% high water mark. Some
flush every 4 hours, some every 5 hours, usually depending on the
storage group, one will flush 4hrs one will flush 5hrs in the group.
Prior to upgrading to 6.5.6 we only had 4 DSSU's, since then we added 5
& 6. Despite having more physical space, we're seeing more errors on
jobs in Production OS and Oracle. Am I just not understanding something
here?
--
Nate Sanders Digital Motorworks
System Administrator (512) 692 - 1038
This message and any attachments are intended only for the use of the addressee
and may contain information that is privileged and confidential. If the reader
of the message is not the intended recipient or an authorized representative of
the intended recipient, you are hereby notified that any dissemination of this
communication is strictly prohibited. If you have received this communication
in error, please notify us immediately by e-mail and delete the message and any
attachments from your system.
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
|
|
|