We are always fighting expiration problems.
We've found is that it's highly dependent on:
- number of files for the node
- number of inactive files for the node (ibm has a note about this)
- random access performance of your disk system
- what else the tsm server is doing when expiration is running
What kills us is ever growing windows servers. It seem as a node
grows past 300k-500k files our expiration for that node skyrockets.
But, nothing is consistent. We have 3 TSM server with big nodes
that have no problem with expiration, but we also have 1 TSm
server that expiration runs 2days (down from 4 days - still
working on it!!!)
I WOULD be highly interested in your script, if you would be
willing to share it.
Rick
hdkutz
<spambehaelter@HD
KUTZ.DE> To
Sent by: "ADSM: ADSM-L AT VM.MARIST DOT EDU
Dist Stor cc
Manager"
<[email protected] Subject
.EDU> Long Expiration
01/21/2010 12:07
PM
Please respond to
"ADSM: Dist Stor
Manager"
<[email protected]
.EDU>
Hello List,
I'am facing a long expiration Time on my TSM Server:
OS: AIX 5.3 TL 07
HW: Power6 4 CPU, 32 GB Mem
TSM Server 5.4.5
TSM Database 105 GB on SAN (DS8k) 2x4 Gbit Fiber Attached
TSM Log 13 GB on SAN (DS8k) 2x4 Gbit Fiber Attached
I wrote a small script which looks for Entrys in actlog to pull out how
long
expiration runs for a particular node. Here's the result:
<snip>
##########################################
Top Nodes: (Expiration greater 30 Minutes)
##########################################
AA Dauer Expiration: 345 Minuten Starttime: 01/21/10 11:54:16 Endtime:
01/21/10 17:39:34
BB Dauer Expiration: 88 Minuten Starttime: 01/21/10 15:59:48 Endtime:
01/21/10 17:28:00
CC Dauer Expiration: 74 Minuten Starttime: 01/21/10 12:09:15 Endtime:
01/21/10 13:23:34
DD Dauer Expiration: 37 Minuten Starttime: 01/21/10 13:38:10 Endtime:
01/21/10 14:15:30
Expiration runs: 347 Minuten Starttime: 01/21/10 11:53:57 Endtime: 01/21/10
17:41:29
<snip>
All other nodes (at last 54) complete Expiration under 30 Minutes, execpt
of
these 4 Nodes. One with 74 Minutes is our Central Fileserver (with Millions
of
Files).
The one that runs longest (AA) is a small HP-UX Machine with 300.000 Files.
What could be the reason for this?
Cheers,
ku
--
Luke Skywalker:
I'm Luke Skywalker, I'm here to rescue you.
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