ADSM-L

AW: Copy storage pools - serious data integrity issues

2003-02-27 04:21:14
Subject: AW: Copy storage pools - serious data integrity issues
From: Salak Juraj <j.salak AT ASAMER DOT AT>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Thu, 27 Feb 2003 10:21:34 +0100
Hi,

once I run into same issue in simillar environment but it turned out to by
my fault:

I did quite often successfull 
        backup stg primary-disk-storage-pool backup-storage-pool
but it occasionaly happened that 
        migration from backup stg primary-disk-storage-pool  to
primary-tape-pool
started before the backup stg has finished.

Figuring that out, i scheduled an extra
        backup stg primary-tape-pool backup-storage-pool
and everything went fine.

regards
Juraj Salak


-----Ursprüngliche Nachricht-----
Von: Neil Schofield [mailto:neil.schofield AT YORKSHIREWATER.CO DOT UK]
Gesendet: Dienstag, 25. Februar 2003 16:32
An: ADSM-L AT VM.MARIST DOT EDU
Betreff: Copy storage pools - serious data integrity issues


Dear all

I've been running TSM for four years or so. When we use BACKUP STGPOOL to
copy a primary storage pool to a copy storage pool, I have relied on the
fact that a successful completion means I have two copies of all my data.

I've just discovered that a number of my files don't have a second copy.
For a large number of volumes (more than 10 per server) Q CONTENT xxxxxx
COPIED=NO comes back details of the files but BACKUP STGPOOL (with or
without PREVIEW=YES) tells me there is no data to be copied.

Some of these files were backed up from the client months (years?) ago.
Some are active, some are inactive.

I discovered this when testing my DR procedures. I updated the status of
all my primary storage pool volumes to be DESTROYED and ran a RESTORE
STGPOOL PREVIEW=YES. I was shocked at the number of 'ANR1256W Volume XXXXXX
contains files that could not be restored' messages that resulted.

I've logged a PMR but wondered if anybody else had experienced similar. It
kind of blows a big hole in my DR plans.

For info, we are running TSM Server 4.2.1.15 on Windows.

Thanks
Neil Schofield
Yorkshire Water Services Ltd.



Visit our web site to find out about our award winning
Cool Schools community campaign at
http://www.yorkshirewater.com/yorkshirewater/schools.html
The information in this e-mail is confidential and may also be legally
privileged. The contents are intended for recipient only and are subject
to the legal notice available at http://www.keldagroup.com/email.htm
Yorkshire Water Services Limited
Registered Office Western House Halifax Road Bradford BD6 2SZ
Registered in England and Wales No 2366682

<Prev in Thread] Current Thread [Next in Thread>
  • AW: Copy storage pools - serious data integrity issues, Salak Juraj <=