RE: db datafiles on NetApp FAS940 filer

From: Joze Senegacnik <JozeS_at_hermes-plus.si>
Date: Tue, 10 Feb 2004 21:31:00 +0100
Message-ID: <E471DDF0A874924DB9FC7D518AF4A29D32751D@runner.hermes-plus.si>

Carmen,
I know one unhappy customer with NetApp. This customer is using Baan. The average wait time for I/O is:

db file sequential read	13.7ms
db file scattered read	17.9ms

The response time in average consists of: 15% of service time and 85% of wait time due to slow I/O. They complain that the average CPU load is only 15-20%. They have also problem with unhappy final users. The supplier tried to improve the performance but with no major change. If somebody would ask me for the advice about NetApp I wouldn't recommend it.

Joze

-----Original Message-----

From: Carmen Rusu [mailto:carmen.rusu_at_rrc.state.tx.us] Sent: Tuesday, February 10, 2004 8:55 PM To: oracle-l_at_freelists.org
Cc: Carmen Rusu
Subject: db datafiles on NetApp FAS940 filer

I am experimenting with creating tablespaces/datafiles on a new NetApp filer we got installed.

The sysadmin configured a dedicated volume out the the 9tb behemoth with a stripe size of 128k, which he tells me is what tech support told him to.

Anybody on the list with a NetApp storage device with Oracle on it? How did you configure it? Wha kind of performance do you get? Any caveats?

Thanks,

Carmen Rusu
DBA

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Received on Tue Feb 10 2004 - 14:31:00 CST