Ken,

        The buffer pool size is an option that is set in dsmserv.opt.  When
you set it to whatever amount, you need to bring 'dsmserv' dwon in order to
pick up the changes.  Hope this helps.


Sean


Sean McNamara
Lockheed Martin
(610) 531-7259

> ----------
> From:         Ken Chamberlain[SMTP:ken.chamberlain AT UTORONTO DOT CA]
> Reply To:     ADSM: Dist Stor Manager
> Sent:         Thursday, October 22, 1998 11:14 AM
> To:   ADSM-L AT VM.MARIST DOT EDU
> Subject:      ADSM performance
>
> Another question...
>
> I've seen recommendations in this list forum advising ADSM administrators
> to
> run the ADSM server with a large enough buffer pool so that cache hit
> percentage is about 98%.  When I issue "q db f=d" it reports:
>
>              Buffer Pool Pages: 128
>          Total Buffer Requests: 354,376,322
>                 Cache Hit Pct.: 89.48
>                Cache Wait Pct.: 0.00
>
> So I guess we're a little low on buffer pool, and I've noticed daily copy
> pool processing and disk to tape migration is taking longer and longer.
> I've asked our unix support guy to look into upping buffer pool, but he's
> come back with "How?".  So my question is: How/where do we specify buffer
> pool size?  "q db f=d" reports it at 128 pages but where do we specify 128
> pages?  This must be a default.
>
> Ken Chamberlain
> University of Toronto
> Phone:(416) 978-1582
> Fax:  (416) 971-2085
> E-mail: ken.chamberlain AT utoronto DOT ca
>