RE: FW:NFS issues

From: Spears, Brian <BSpears_at_Limitedbrands.com>
Date: Tue, 1 Nov 2005 09:41:58 -0500
Message-ID: <50938E6468CFED40AE0FD7A507D96D340207CFD5@EXCHSERV2.Limited.brands.com>

Used to put our archivelogs on netapps now we do it on SAN. For the most part the SAN has been flawless. A couple weeks ago we did have an issue writing to the SAN for a couple hours. The San reported no errors and the problem went away after a couple hours. I am not convinced it was the SAN at all.
Sounds like Dick just had a recent setup..so it might just be some setup issues that usually occur in new implementations of something.

Brian

From: Hemant K Chitale [mailto:hkchital_at_singnet.com.sg] Sent: Monday, October 31, 2005 6:34 PM
To: Spears, Brian; Goulet, Dick; Ruth Gramolini Cc: oracle-l_at_freelists.org
Subject: RE: FW:NFS issues

So the problems that Brian and Dick are reporting are when using NFS over SAN ?
{both say that they "used to use NetApp" and now use "SAN"} ?

I run 9iRAC (Linux) on NetApp with , obviously, the archivelogs also on the same NetApp filer
and haven't had issues.

Hemant

At 03:06 AM Tuesday, Spears, Brian wrote:

ah ha!! sounds very familiar...

Actually, we did the same thing..used to use Netapp and now we use SAN. We have used a couple of SANs now ...

OOPS, my feeble memory is jogged, I actually just had a similar problem you are having... eek, just a couple weeks ago.

Ok.. the admin and I scratched heads for 2.5hrs and then it started working again.... thought it actually was RMAN writing the backup to there (and the Rman archivelog backup).

We never got to the bottom of it. We were thinking of putting sniffer on the network to check for bottlenecks but the problem has not shown up since.

Brian

From: Goulet, Dick [ mailto:DGoulet_at_vicr.com <mailto:DGoulet_at_vicr.com> ]

	Sent: Monday, October 31, 2005 12:58 PM
	To: Spears, Brian; Ruth Gramolini
	Cc: oracle-l_at_freelists.org
	Subject: RE: FW:NFS issues
	
	New wrinkle to add to the pile, caught me off guard too.  This use

to be a NFS mount to a Net Appliance system. It was moved over the weekend to a SAN mount pointon the CX500. Still NFS though.

From: Spears, Brian [ mailto:BSpears_at_Limitedbrands.com <mailto:BSpears_at_Limitedbrands.com> ]

	Sent: Monday, October 31, 2005 12:40 PM
	To: Goulet, Dick; Ruth Gramolini
	Cc: oracle-l_at_freelists.org
	Subject: RE: FW:NFS issues
	
	Network?  Not sure I can help at this point..looks like some

directed troubleshooting...

Also.. onetime I think we had a problem... we rebooted our server from where the NFS mounts were done which helped.

brian

From: Goulet, Dick [ mailto:DGoulet_at_vicr.com <mailto:DGoulet_at_vicr.com> ]

	Sent: Monday, October 31, 2005 11:48 AM
	To: Spears, Brian; Ruth Gramolini
	Cc: oracle-l_at_freelists.org
	Subject: RE: FW:NFS issues
	
	Brian,
	 
	    Yes we can write files on the NFS mount, and the syslogs have

nothing in them. But the DB sure is having a pile of fun with it. Alter log says it's creating the archive log, but nothing shows up and the db just hangs.

From: Spears, Brian [ mailto:BSpears_at_Limitedbrands.com <mailto:BSpears_at_Limitedbrands.com> ]

	Sent: Monday, October 31, 2005 11:45 AM
	To: Goulet, Dick; Ruth Gramolini
	Cc: oracle-l_at_freelists.org
	Subject: RE: FW: Unsubscription confirmation for 'oracle-l'
	
	Yes we are... and no problems.
	 
	One weapon we are finding useful is the 10G OEM.. does server

parameter comparisons...ie..did the ghost admin change something..? Even when we catch them.. it slides like water off the ducks back cause they are on the top of the food chain. Always.. I remember there are some settings to make sure NFS can accommodate issue (forget the details now.. something about async). I would do some testing..can you copy files there, write there ...have the Admin check the syslog and so on..

Brian

Hemant K Chitale
http://web.singnet.com.sg/~hkchital

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Received on Tue Nov 01 2005 - 08:45:49 CST