CORAID using only 1 of the 2 available NICs for AoE traffic

Posted by Peter Carrero on Server Fault See other posts from Server Fault or by Peter Carrero
Published on 2010-05-12T00:03:26Z Indexed on 2010/05/12 0:14 UTC
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We got 6 CORAID shelves in my workplace. On 2 of them I see AoE traffic on only 1 of the 2 NICs that are attached to the SAN switch. We got jumbo frames enabled on all devices.

Both NICs show up when I issue the aoe-interfaces command.

This wouldn't bother me too much if the throughput performance observed on the "bad" shelves using bonnie++ wasn't half of the result of the "good" shelves.

The "good" shelves are older SR1521 model and they have ReiserFS on their LUNS - not that I think it makes a difference - and the "bad" shelves are newer SR2421 model and have JFS.

Any help as to what is going on and how to rectify this would be greatly appreciated.

BTW: even the lower performing shelves outperform another iSCSI device we got, but that is another story...

Thanks.

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