RE: Using multiple NICs for Oracle dNFS

From: D'Hooge Freek <>
Date: Wed, 28 Mar 2012 20:23:58 +0200
Message-ID: <>

To add to Matt's response:

From onwards you can add the "dontroute" parameter to the oranfstab file to allow the usage of multiple nics in the same subnet. I have however not done any tests to see how well this works.

Also, in that case I think you can have a situation where the switch decides to use the same outgoing port for all traffic, even if the source (incoming) port is different.

Kind regards,  

Freek D'Hooge
Oracle Database Administrator
tel +32(0)3 451 23 82

-----Original Message-----

From: [] On Behalf Of Hameed, Amir Sent: woensdag 28 maart 2012 20:05
Subject: FW: Using multiple NICs for Oracle dNFS

Response from Matt.

-----Original Message-----

From: Zito, Matthew [] Sent: Wednesday, March 28, 2012 1:58 PM
To: Hameed, Amir
Subject: RE: Using multiple NICs for Oracle dNFS

If you could forward my response to the list, I'd appreciate it, as somehow my posting to the list is broken.

The short answer is that they can be in the same VLAN, but different *logical* networks, or different VLANs and different networks.

The longer answer is that you need something like

Nic0 -
Nic1 -

And on the filer:

Nic0 -
Nic1 -

You can have them on the same VLAN or different, it doesn't really matter at this point. If they're on the same network, so, for example: is nic0 and is nic1, the box will not properly load balance traffic between the two networks.

When you say traceroute, what does the output look like? If you're expecting to get 10gb speeds, you really need to make sure that there are no routers in between your filers/NAS heads and your database machines.



Matthew Zito
Product Development Architect
BMC Software

-- Received on Wed Mar 28 2012 - 13:23:58 CDT

Original text of this message