Re: Cache Hit Percent below 90%
1999-07-30 10:25:40
There's 640 mb memory on the server.
The available space for the db is 8000 mb.
Page size: 4096.
Total usable pages: 2048000
Used pages: 1565443.
Approx. amount of data being backed: 40GB
Ciao Mauro asked:
> Memory?
> How much memory do you have and how big is the Buffer Pool?
> How big the DB and how much is in use?
From: Marita Gonsalves
> Hello all,
> I've run into a problem and I want to make sure that the cause is
not
ADSM
> before I involve anyone else on this. Background info: NT 4.0
environment,
> running ADSM server ver. 2 backing up 24 servers. Running ADSM
client
ver.
> 3 on 4 servers.
>
> I've noticed that the cahce hit pecrent keeps dropping gradually
over a
> period of time. The only way I can fix this is stopping and
starting
the
> ADSM server. I have increased database buffer pool, per the ADSM
manual
> suggestion, from 512KB to 1014KB. The cache hit percent is
currently
at 77%
> (I stopped and started the service 2days ago). The cache wait pct
is
0.
> The total buffer requests are very high considering I just reset
the
buffer
> pool two days ago:114,983,514.
>
> When inventory expiration runs, I've noticed that it takes
anywhere
from 5 -
> 8 hours to run. In the past it never took more than 1.5 - 2 hours
to
run.
>
> Another anomaly: scheduled backups start at 2 a.m. in the morning.
When I
> come in at 8:30 a.m. one or two of the clients running ADSM ver. 3
client is
> still in process. In the past, the backups were done by 6 a.m.
No,
data
> has not increased. In fact, the summer is our slow time and
backups
should
> be going a lot faster since the traffic on most of the servers is
limited.
> School starts in two weeks and I shudder to think what it will be
like
if I
> don't find a fix for this problem.
>
> Can anyone tell me what the problem is? I want to be able to
pre-empt
any
> problem before it gets out of control. I want to be sure that
this is
not
> an ADSM problem before I start looking at the network.
>
> Any suggestions would be greatly appreciated. Thanks,
>
> Marita Gonsalves
> IS Consultant
> Cary Academy
> 919-677-1946 x4555
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