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Re: Restore very slow
2005-12-07 10:51:22
Hi Chris,
Sounds like the classic 'classic restore'
versus a 'no query restore'. You say you're running a point in time restore
which will invalidate the no query restore and will force the slower classic
restore operation - particularly slower when you've several millions of
objects to trawl through... You're seeing it in another way (nmon), but
if you've an otherwise quiet TSM server, you'll see from a `q db f=d` that
your 'Total Buffer Requests:' value will be shooting through the roof during
this (on a quiet server you might expect it to increase on average by between
5 - 10 every second or so).
There is some stuff from the admin guide
on this, and what determines when a restore is a valid 'no query restore'
candidate: http://publib.boulder.ibm.com/infocenter/tivihelp/v1r1/topic/com.ibm.itsmc.doc/ans50000135.htm
Also, check Richard Sims' TSM QuickFacts
for "No Query Restore" for more practical info.
I've been here before too - I'm afraid
it was just a case of being patient (only after my initial "nothing's
happening" panic though!). Good luck.
Rgds,
David McClelland
Storage and Systems Management Specialist
IBM Tivoli Certified Deployment Professional (ITSM 5.2)
SSO UK Service Delivery – Storage Services
IBM Global Services – IBM United Kingdom
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Christoph Pilgram <Christoph.Pilgram AT BC.BOEHRINGER-INGELHEIM DOT COM>
Sent by: "ADSM: Dist Stor Manager"
<ADSM-L AT VM.MARIST DOT EDU>
07/12/2005 15:27
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Subject
| [ADSM-L] Restore very slow |
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Hi,
Since this morning (5 hours) I am running a PIT-restore for a user-profile
on a w2k-client (TSM V 5.2.2.0). TSM-Server is a IBM p450 with AIX 5.2
ML6
and TSM-server-version 5.2.4.3. There are about 11 Mio files stored on
the
backup-server from this node.
Since begin of rhe restore no access on any tape has been performed, no
directory is created on client. The server works hard on the database
(nmon). Nothing changes in bytes-sent (3.0 M) / bytes recvd (1.5 K) for
the
session.
The client started backups about 4 weeks ago so there are not too many
incrementals since then. The data are spread over 2 tapes (IBM-3592).
I now stopped the restore and started a new one to restore only one empty
directory. The behaviour is the same, haevy working on db-volumes but
nothing comes back.
Has anybody seen something like that and knows how to get the data back
?
Thanks for help
Chris
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