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Re: RMAN backups to NFS OR FS 'snapshots'

From: DA Morgan <damorgan_at_psoug.org>
Date: Wed, 04 Apr 2007 07:46:54 -0700
Message-ID: <1175698010.681990@bubbleator.drizzle.com>


joel garry wrote:
> On Mar 30, 10:49 am, NetComrade <netcomradeNS..._at_bookexchange.net>
> wrote:

>> For those who run backups to NFS
>>
>> a) which device do you use.. with digiliant, and emc ax100, we haven't
>> rearched much beyond 25megs per second (that's 9i, 10g with
>> compression is faster)
>> b) have you ever had corruption problems? we recently had a corrupt
>> lvl0, which I thought was difficult to 'achieve' over a tcp mounted
>> nfs

>
> is it mounted hard and nfsver=3? Like
> rw,bg,intr,hard,timeo=600,wsize=32768,rsize=32768,nfsver=3,tcp (per
> Jeff Hunter blog)
>
> See http://kevinclosson.wordpress.com/2007/01/02/oracle-over-nfs-emc-and-network-appliance-truth-telling/
> and http://nfs.sourceforge.net/nfs-howto/ar01s05.html
>
> jg
> --
> @home.com is bogus.
> "The Supreme Court spanked the EPA." - Jerry Brown

Our recommendation is
rw,bg,intr,hard,rsize=32768,wsize=32768,noac,nolock,tcp,vers=3 0 0

with NetApp.

-- 
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 Apr 04 2007 - 09:46:54 CDT

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