We don't have the requirement for email archiving, so I can't address
that question.
I would first ask, what do you mean by "when there is a problem with the
tape??!?"
I assume when you say "restore of the tape", you mean recreating the
tape using RESTORE VOLUME from your offsite/DR tape?
I would be shocked to find out you have had "problems" with an LTO2
volume that caused you to do a RESTORE VOLUME more than once in a year,
and my response would be to address THAT issue.
In the meantime, a quick and dirty solution is to have TWO tape copy
pools. Keep one onsite, as well as the one you keep offsite.
(If you don't have room in your library, put the 2nd copy pool tapes on
a shelf outside the library as they fill up.)
That way, if you can't read your onsite tape, mark it DESTROYED, and
restores will take place from the onsite copy pool tapes.
After you have met your SLA that way, you can let the RESTORE VOLUME
take as long as it needs, won't affect your SLA's.
(BUT, fix those tape issues ASAP.)
Wanda Prather
"I/O, I/O, It's all about I/O" -(me)
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Nancy L Backhaus
Sent: Wednesday, February 16, 2005 10:50 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Feedback - how are you using email archiving?
Background:
TSM Server 5.2.3.5
AIX Op System 5.2.2.0, P650 box
Library -ADIC I2000 Scaler, LTO 2 Drives
Looking for feedback from the group.
We have currently have a partioned library, 10 drives for all our system
backup. The other library partition, with 2 drives for content manager.
We are using content manager, via common store for email archiving.
The
problem is when there is a problem with the tape, there are thousands of
small files on tape..and the restore of the tape is taking 20 hours to
move the data off a tape. Seems that using LTO tape is not the answer
with all of thousands of individual emails on one tape. Business SLA
for
email archiving is 24 hours. We are looking at increasing our disk
pools, and keep all data on the disk...and of course, still keep offsite
copy for DR purposes at this point.
Interested in any suggestions? What are you doing for email archiving?
Nancy Backhaus
Enterprise Systems
Backhaus.Nancy AT HealthNow DOT org
Office: (716) 887-7979
Cell: (716) 609-2138TO
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