RE: netapps experience and performance tool
- From: "Post, Ethan" <Ethan.Post@xxxxxx>
- To: <ntilbury@xxxxxxxxxxxx>, <stevenoyle1@xxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 19 Nov 2004 12:06:33 -0600
If you end up NFS mounting netapp I don't think sar -d works. I just
recently saw an issue with DBWR bottleneck during checkpoints, appears
to be some sort of IO configuration issue with Oracle/HPUX and NetApp,
this article I think may have provided the solution
http://www.netapp.com/tech_library/3146.html
I am just a point of contact on the issue so I am not sure. Anyway, I
think in general provided you get a filer with plenty of disks you can
expect pretty good performance, there are other listers here I know are
running NetApp very successfully with heavy IO demands. I think the
lesson to be learned is make sure you get spread the IO out across a lot
of disks, requires a large filer and don't skimp on configuration, you
don't want the network to be the bottleneck.
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Nick Tilbury @
Northampton
Sent: Friday, November 19, 2004 10:09 AM
To: 'stevenoyle1@xxxxxxxxx'; oracle-l@xxxxxxxxxxxxx
Subject: RE: netapps experience and performance tool
I believe Oracle and Netapps are very much 'in-bed-together' now days
and
all Oracle in-house platforms
are now hosted by Netapps kit (www.netapp.com)
I have had some seriously bad experiences with write performance on NAS
units but that was a few years ago
and it was on an extremely cheap bit of kit.
My current thinking is there is a place for NAS but unless it's top of
the
line kit it's place is not=20
hosting an OLTP database.
We currently use a NAS unit for DEV/TEST databases and are in the
process of
implementing a disk-staging
procedure for backups using an ATA Beast NAS.
Nick
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