Has anyone run across a limit (documented or otherwise) for the number
of lan-free clients one TSM server can handle?

We have one TSM server that we had 23 Exchange servers running lan-free
backups.  We added 24 and 25, and now we are having a strange problem
where it appears these new clients are polling or query command to the
tape drives and it is causing tape errors and taking them offline in
some cases.  We have verified that the two new servers are identical in
every way to all the others... Drives, firmware, BIOS, etc..  When we
block these two hosts at the port level from seeing the tape drives, the
problem goes away.


TSM Server AIX 5.2
TSM Version 5.2.3.1
3494 Library
3590H tape drives


Windows Hosts
B/A Client version 5.2.0.3
ITSM for Mail 5.2.1.0
Storage Agent version 5.2.2.3
Qlogic 2310F HBA - Driver version 9.0.0.13



We have sumbitted dumps to IBM support, but they are painfully slow in
getting back to us.

Just thought I would "poll" the group...'->

Thanks,

Matt Adams
Information Technology Services
Deloitte Services LP
615-882-6861
www.deloitte.com





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