Re: Backup to NFS

From: DA Morgan <damorgan_at_psoug.org>
Date: Wed, 09 May 2007 10:28:00 -0700
Message-ID: <1178731681.232712@bubbleator.drizzle.com>

sybrandb_at_hccnet.nl wrote:
> On Tue, 08 May 2007 08:28:43 -0700, DA Morgan <damorgan_at_psoug.org>
> wrote:
>

>> Same experience here. If NetApp's NFS, AFAIK the only one certified by
>> Oracle, I've never experienced a problem.

>
> I'm not talking about using NetApp NFS. I'm talking about NFS supplied
> by the O/S. Does that mean O/S supplied NFS (even v3 or higher) is not
> supported? In several situation people just force me to use NFS
> because of insufficient diskspace.

When you NFS mount it is always with the operating system.

But there is, it appears, a difference between:

# mount -t nfs 192.168.20.215:/vol/stage /mnt

and

ntap270a:/vol/alpha /u01 nfs
rw,bg,intr,hard,rsize=32768,wsize=32768,noac,nolock,tcp,vers=3 0 0

Both being to a NetApp filer head.

One is accepted by RMAN, RAC, etc. the other is not. And from compatibility matrices it appears that Oracle distinguishes NetApp from others. Again I don't know the details as to why.

-- 
Daniel A. Morgan
University of Washington
damorgan_at_x.washington.edu
(replace x with u to respond)
Puget Sound Oracle Users Group
www.psoug.org

Received on Wed May 09 2007 - 12:28:00 CDT