Matti,
        We're running with a similar environment (R30+ , 2 processors, 756 MB
memory) and have had no major problems with performance... a couple of
things you can check...

1) Increase your LOGPOOLSIZE and BUFPOOLSIZE - check the output from a Q
LOG F=D and a Q DB F=D.  For the database you want a very high cache hit
ratio - 99% or better if you've got the memory to spare.  For the
recovery log, make sure it shows no pct. wait (Q LOG F=D) - if it does,
increase the log size.  I've got our LOGPOOLSIZE set to 32768 and out
BUFPOOLSIZE set to 65536.  Note - the ADSM server at 2.1.5.12 will need
a special patch, available at the anonymous FTP site, to run with high
poolsizes.

2) Network interfaces - how many network interfaces does your system
have and what kind are they ??  If you've only got 1 token ring or
ethernet card, consider adding at least one additional card.

3) I/O - make sure your database and recovery logs are on separate
physical volumes and, if at all possible, separate interfaces if you're
using SCSI.  If you're using SSA disks and adapters this is not as big
an issue but your should still try to put them on separate  physical
volumes.  For disk storagepools, try to put them on separate physical
volumes also.


Hope this helps...

Tim Pittson
tpittson AT himail.hcc DOT com
>----------
>From:  Matti Harvala[SMTP:Matti.Harvala AT NMP.NOKIA DOT COM]
>Sent:  Monday, March 10, 1997 4:47 AM
>To:    ADSM-L AT VM.MARIST DOT EDU
>Subject:       How to Scale ADSM
>
>  Hello !
>
>I am running my ADSM server 2.1.5.12 in RS/6000 J40 and I have problems
>with performance.
>
>When I run "dsmserv audit db -fix" it takes 15 hours (my db has 10 500
>000 entries).
>
>I also I need to run more than 20 "dsmc i" sessions parallell within this
>server machine (adsm client and server in same machine). And the server
>get's slow.
>
>So would some more memory or additional cpu's help, currently I have two
>CPU's and 256 Mem. Can ADSM use SMP advantages ?
>
>What could I do to make performance better.
>
>  Matti Harvala
>  Unix System Manager (Computing Services)
>
>  Nokia Mobile Phones    Phone:  +358 (0)10 505 2254
>  P.O. Box 86            Fax:    +358 (0)10 505 2899
>  24101 SALO FINLAND     Mobile: +358 (0)40 556 5931
>  E-mail: matti.harvala AT nmp.nokia DOT com
>