Using multiple NICs for Oracle dNFS

From: Hameed, Amir <>
Date: Wed, 28 Mar 2012 13:51:39 -0400
Message-ID: <>

When configuring multiple NICs (two in our case) for dNFS per RAC server, do all NICs need to be in the same VLAN (assuming that private dedicated VLANs are used) or does each NIC need to be in its own private VLAN? We have configured two 10GbE NICs in a private VLAN on each RAC node. However, when I run trace-route (these are Solaris boxes) from the dNFS NIC IPs to the NAS IP, trace-route works fine on one NIC and not on the other and this behavior is consistent on all RAC nodes where trace-route is working fine on one of the NICs and not on the other. Our networking people are not able to figure out what is causing it. Our Unix people believe that if multiple NICs are part of the same VLAN then the traffic will go out (to NAS) only from one NIC but will be received by both NICs (from NAS). I am not a networking expert and would appreciate if anyone can provide some feedback.  



Received on Wed Mar 28 2012 - 12:51:39 CDT

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