Hi David!
It was a reclamation of a primary tapepool volume. A unit was available, so
it wasn't waiting a long time before the tape was mounted.
I will check my troughput by just doing a move volume from an drive to
another to see if this performs as one might expect.
Thanks for your reply!
Kindest regards,
Eric van Loon
KLM Royal Dutch Airlines
-----Original Message-----
From: David Longo [mailto:David.Longo AT HEALTH-FIRST DOT ORG]
Sent: Thursday, March 06, 2003 17:41
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: LTO Reclamation
If this was an offsite tape pool, that could be normal, if
having to mount many tapes and search around.
I have 3584 with FC drives on AIX and generally is faster
more like 40GB per hour, but some places can be slower.
Wouldn't expect this slow normally, just sometimes.
Also do you know if the reclamation had to wait for a tape
mount at any point? Maybe a tape was in use by another
process.
David B. Longo
System Administrator
Health First, Inc.
3300 Fiske Blvd.
Rockledge, FL 32955-4305
PH 321.434.5536
Pager 321.634.8230
Fax: 321.434.5509
david.longo AT health-first DOT org
>>> Eric-van.Loon AT KLM DOT COM 03/06/03 11:14AM >>>
Hi *SM-ers!
I just checked my reclamation. A tape was being reclaimed and it took TSM
3:41:14 to do the job. The total amount of data being reclaimed was
104,711,564,841 bytes. That's about 7.8 Mb./sec.
I don't know if this is a speed one might expect, but to me it looks a
little bit slow. I'm using a TSM 4.2.3.2 server on AIX, the drives are SCSI
attached, two drives per cable/connector.
Does anybody have some tricks to boost this performance? Or maybe, this is
normal performance?
Thanks in advance for any reply!
Kindest regards,
Eric van Loon
KLM Royal Dutch Airlines
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