I've got one 30 GB TSM data base, 4 others are smaller.
I'd guess you are slightly above average, but I have no actual stats to go
on.

I strongly agree with the previous post that you should double check your
retention settings to see if you are keeping too many versions of files, and
check to sure expiration is running to see if you can slow down your DB
growth rate.

As far as what is "too large", it depends totally on your hardware/software
combination, and whether you are happy with your performance.  As hardware
gets better, TSM sites are reporting satisfactory results with larger data
bases.

As the DB grows, TSM sites generallly start reporting complaints about
expiration, reclaim, and/or DB backups running too slowly to get done in a
timely fashion.  You certainly can't grow the DB indefinitely.  I expect you
will start to choke long before you get to 100 GB, so I would worry about my
growth rate, if I were you.

Regarding the tape library issue, I assume your library is defined as
LIBTYPE=SCSI  (to check, you can do:  Q LIBRARY libname F=D).
TSM does not support mixed device types in a SCSI library.



-----Original Message-----
From: Miller Dave (RBNA/CIT1) [mailto:[EMAIL PROTECTED]]
Sent: Monday, July 15, 2002 4:51 PM
To: [EMAIL PROTECTED]
Subject: General TSM Q's


Hello All,

We have recently deployed TSM at our site.  Being new to TSM, I have a few
questions I was hoping someone may be able to help with.

I am running TSM 4.2.1.9 with a Compaq ESL9198DLX on W2K

1) Our TSM database has grown surprisingly fast.  We tend to backup LOTS of
little tiny files and as a result our Database is currently around 30Gb.  I
understand that the technical limit for the DB is somewhere around 5TB.

Should I be concerned running a 30GB database on NT using a single server?
Would this be considered a small, average or large TSM installation?


2) We've also found that our library is a little under-sized.  (I regularly
find myself exporting tapes from our primary tape storage pool to make room
for scratch media).  I would like to replace two or three of the DLT40/80
drives in the library with SDLT units.  The ESL9198 hardware will support
Mixing DLT and SDLT drives and media.  Does any know or have experience
setting up a library with two media types?  Would TSM support this type of
environment?

Any help or information anyone can provide would be greatly appreciated!

Dave Miller
[EMAIL PROTECTED]

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