Re: Copy storage pools - serious data integrity issues
2003-02-25 10:43:16
I did experience the same problem at a DR 3 years ago. What we found out
was our Daily Process was not working properly. The BACKUP STGPOOL was not
finishing to successful completion. Also, did a RESTORE STGPOOL COPYPOOL.
I usually run the restore a couple of months b4 DR to help sync things up.
Last year there was no tapes to restore. As long as our daily process
continues to complete successfully our DR will work good.
Thank You,
Bill Rosette
Data Center/IS/Papa Johns International
WWJD
Neil Schofield
<neil.schofield@YORKSHIREW To: ADSM-L AT
VM.MARIST DOT EDU
ATER.CO.UK> cc:
Sent by: "ADSM: Dist Stor Subject: Copy storage
pools - serious data integrity issues
Manager"
<ADSM-L AT VM.MARIST DOT EDU>
02/25/2003 10:31 AM
Please respond to "ADSM:
Dist Stor Manager"
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
|
|
|