RE: rman/NFS over internet, performance
- From: "Robertson Lee - lerobe" <Lee.Robertson@xxxxxxxxxx>
- To: <b.rost@xxxxxxxxxxx>, "ORACLE-L" <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 21 Oct 2008 13:29:42 +0100
Oops.....forgot to mention, this was on a Linux machine, I noticed yours
was Solaris.
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Robertson Lee -
lerobe
Sent: 21 October 2008 13:21
To: b.rost@xxxxxxxxxxx; ORACLE-L
Subject: RE: rman/NFS over internet, performance
Hi,
We had very similar issues to those that you mentioned and used the
following nfs mount options. Performance picked up immediately
(rw,tcp,bg,hard,addr=xx.xx.xxx.xx)
I think it was the noac that was killing it.
HTH
Lee
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Bjoern Rost
Sent: 21 October 2008 12:52
To: ORACLE-L
Subject: rman/NFS over internet, performance
Hi,
I am trying to backup through an NFS mount to a disk located in a
different datacenter between some solaris boxes. This works, but I am
not satisfied with speed/performance. Using ftp, i can transfer data at
more than 30mbit/s, while NFS peaks at only 16Mbit/s
I already use compressed backupsets. There doesn't seem to be a whole
lot to tune in nfs client settings as oracle requires tcp, vers=3 and
noac anyway.
I tried to use more (and less) parallel channels but that didn't help
much either.
Any more ideas?
Thanks
Bjoern
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