RE: datafiles on NFS?
Date: Tue, 11 Mar 2008 17:18:54 -0500
Message-ID: <3B8B6A1700202C43A89D61CE495C894E0D7753B4B0@MSPM1BMSGM103.ent.core.medtronic.com>
We ran into a specific problem at a previous vendor that I worked for where the datafiles were set to autoextend. When the autoextend maxed out the filesystem, the NFS mount acknowledged writes that didn't actually occur. The tablespace became corrupt. They had to restore from backups. This was about 15 months ago and it was SUSE Linux. This problem may not occur with other flavors of Linux, and they may have fixed it since then.
Pat
-----Original Message-----
From: D'Hooge Freek [mailto:Freek.DHooge_at_uptime.be]
Sent: Tuesday, March 11, 2008 5:06 PM
To: mzito_at_gridapp.com; Elliott, Patrick; spikey.mcmarbles_at_gmail.com; ORACLE-L
Subject: RE: datafiles on NFS?
In this respect it is maybe interesting to note that it is not the netapp itself that has been certified by oracle, but the ontap operating system that runs on the netapp. This means that you can use the netapp simulator as storage device.
Regards,
Freek D'Hooge
Uptime
Oracle Database Administrator
email: freek.dhooge_at_uptime.be
tel +32(0)3 451 23 82
http://www.uptime.be
disclaimer
From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Matthew Zito Sent: dinsdag 11 maart 2008 21:16
To: Elliott, Patrick; spikey.mcmarbles_at_gmail.com; ORACLE-L Subject: 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_at_gridapp.com http://www.gridapp.com [CONFIDENTIALITY AND PRIVACY NOTICE] Information transmitted by this email is proprietary to Medtronic and is intended for use only by the individual or entity to which it is addressed, and may contain information that is private, privileged, confidential or exempt from disclosure under applicable law. If you are not the intended recipient or it appears that this mail has been forwarded to you without proper authority, you are notified that any use or dissemination of this information in any manner is strictly prohibited. In such cases, please delete this mail from your records. To view this notice in other languages you can either select the following link or manually copy and paste the link into the address bar of a web browser: http://emaildisclaimer.medtronic.com -- http://www.freelists.org/webpage/oracle-lReceived on Tue Mar 11 2008 - 17:18:54 CDT