RE: datafiles on NFS?

We've tried a few of the UNIX NFS implementations with Linux RAC, with the 
following results:
- Linux NFS Server - CRS fails to start
- Solaris NFS Server - CRS starts, however Oracle does not seem to want to run 
(we did only nominal testing here, so there could potentially be a scenario 
where it works)
- OS X Server - Yes, a Mac NFS server seems to work fine for RAC, should you 
(oddly) happen to have one running around your datacenter.

I know some people have reported success using some vanilla NFS implementations 
with standalone - iirc, the CRS does some basic NFS sanity checking by trying 
to open the voting disk with a variety of different flags, and if any of them 
fail, it promptly shuts itself down.  This was a couple of years ago, though, 
so it could easily have changed.  As always, YMMV.

Matt

--
Matthew Zito
Chief Scientist
GridApp Systems
P: 646-452-4090
mzito@xxxxxxxxxxx
http://www.gridapp.com



-----Original Message-----
From: Elliott, Patrick [mailto:patrick.elliott@xxxxxxxxxxxxx]
Sent: Tue 3/11/2008 11:43 AM
To: Matthew Zito; spikey.mcmarbles@xxxxxxxxx; ORACLE-L
Subject: RE: datafiles on NFS?
 
Thanks for the clarification, Mat.  I wanted to take back my email right after 
I sent it when I gave the specific vendor name.  The key point that I wanted to 
make is that generic, out-of-the-box UNIX NFS mount points will not work for an 
Oracle database.


Pat

-----Original Message-----
From: Matthew Zito [mailto:mzito@xxxxxxxxxxx] 
Sent: Tuesday, March 11, 2008 10:35 AM
To: Elliott, Patrick; spikey.mcmarbles@xxxxxxxxx; ORACLE-L
Subject: RE: datafiles on NFS?


While I am a huge fan of NetApp, in fairness, there are more vendors that are 
certified for Oracle NFS than just NetApp.  EMC, BlueArc, HP's Storage Gateway 
(formerly PolyServe), and some others all have certified NFS platforms.  Kevin 
Closson, who worked for PolyServe pre-HP acquisition, has written about Oracle 
on NFS extensively.

http://kevinclosson.wordpress.com/2007/06/14/manly-men-deploy-oracle-with-fibre-channel-only-oracle-over-nfs-is-weird/

Thanks,
Mat

--
Matthew Zito
Chief Scientist
GridApp Systems
P: 646-452-4090
mzito@xxxxxxxxxxx
http://www.gridapp.com



-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx on behalf of Elliott, Patrick
Sent: Tue 3/11/2008 10:42 AM
To: spikey.mcmarbles@xxxxxxxxx; ORACLE-L
Subject: RE: datafiles on NFS?
 
NFS will work only if you are using Network Appliance.  Just plain UNIX NFS 
will not work.  You will get a corrupt database.


Pat

-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On 
Behalf Of Greg Norris
Sent: Tuesday, March 11, 2008 8:18 AM
To: ORACLE-L
Subject: datafiles on NFS?

I've got a 9iR2 database on an AIX server which is currently experiencing some 
SAN problems.  The SysAdmins have indicated that we need to move off the SAN 
for several days while they address the issue, and has suggested that we 
relocate the database to NFS in the interim.  My preference would be a 
backup/restore to another server, but we unfortunately don't have any other AIX 
systems available, and the application has some constraints which prevent us 
from migrating to another OS at present.

I'm somewhat reluctant to use NFS for Oracle datafiles, largely because we 
simply haven't done this for any other environments, but I'm not sure that I 
have many options in this specific case.  Is anyone doing this?  If so, is 
there anything in particular that I should be sure to check/address?

Thanx!

--
"I'm too sexy for my code." - Awk Sed Fred.
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http://www.freelists.org/webpage/oracle-l



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