Re: db datafiles on NetApp FAS940 filer

From: Carmen Rusu <carmen.rusu_at_rrc.state.tx.us>
Date: Wed, 11 Feb 2004 08:11:04 -0600
Message-Id: <s029e3a2.048@gwgate.rrc.state.tx.us>

Did you stripe the volume? If yes, what was the stripe size you have used to configure the volumes/mountpoints?

My sysadmin said Netapp support told him 4k is the default and he cant change it.

>>> cjpengel.dbalert_at_xs4all.nl 2/10/2004 5:56:41 PM >>>
A (former) customer of mine uses NetApp with 1GB network, Oracle 8 on AIX.
The biggest problem was configuring the system with only a few volumes/mountpoints. On AIX that developed a lot of contention. Creating
more mountpoints to spread the IO helped, even though there was only one
NIC. This was discoverd after I left the site because I wouldn't work with
the damagement any longer. Anjo has been in there later. Maybe he has some
details.

Regards, Carel-Jan

At 10:32 PM 2/10/2004, you wrote:
>On 02/10/2004 05:07:31 PM, Joze Senegacnik wrote:
> > Babette,
> > some of my customers with SANs are far below that: from 2 to 5ms
> > (normal
> > load).
> >
> > Thanks!
> > Joze
>
>What SANs are that? EMC or HP/Hitachi? Those HP/Hitachi things are
>really, really fast with decent amount of write-back cache, but for
>some reason, much more software is available for EMC.
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Received on Wed Feb 11 2004 - 08:11:04 CST