Jeffery,
Novell clients often have large numbers of small objects, so I would be looking
for
database cache hit 99%, and database cache wait 0%.
If you have values below 99% or higher than 0% you need to increase your
database buffer pool (BUFPoolsize)
The other thing you might look at are the host server cpu, is it powerful
enough.
There also various tuning parms you may need to increase such as on host server
TXNGroupmax
MOVEBATCHSIZE
MOVESIZETHRESH
and on client
Txnbytelimit
Its also worth having a read through the ADSM V3 Release 1 Performance Tuning
guide
John
Jeffery Carroll <Jeffery_Carroll AT VALIC DOT COM> on 30/01/2000 21:12:37
Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
cc: (bcc: John Naylor/HAV/SSE)
Subject: Novell Client Bottleneck
We have encountered extreme slowness when backing up Novell clients. These are
4.11/5.0 Novell clients. It now takes up to 10-13 hours for Novell clients that
are only sending 2-3 gigs of data at most for each client. Conversely our NT
clients that have 80-120 gigs are finishing in less than 5 hours. All clients
are on dedicated backup segment and communicating via TCP/IP. We are running
ADSM 3.1 rel 2.30. We have approximately 25 Novell clients. I have
experimented with max session settings,randomization,polling/prompting, as well
as prioritization settings, and even frame types, half duplex,full duplex on
both client and server. When we had only one Novell client connected, it was
extremely fast finishing in less than an hour. However as number of clients
have been added to backup scheme, bottleneck has increased as well. The only
solution I have found it to stagger jobs (one group kicks off at 8:00Pm, one
group at 9:00etc). I have seen in some posts that ADSM handles Novell clients
somewhat slower than NT,Unix,etc. Any additional suggestions appriciated.
Thanks,
Jeff
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