Interrupt fencing on Sun
Date: Mon, 21 Jan 2008 21:34:04 +1100 (EST)
On a 8 node 10.2.0.3 RAC with 128 cpus Sun and Veritas have recommended that the customer set aside 2 cpus on each node for processing network interrupts exclusively.
This was suggested after a situation where VCS was unable to process cluster heartbeat messages in a timely manner due to Sun attempting to process the network interrupt thread on the same CPU which was running the cluster communication thread.
I would like to know if any other large customers have set aside cpus exclusively to handle network interrupts and if so what percentage of total CPUs
Senior Oracle Consultant
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http://www.freelists.org/webpage/oracle-l Received on Mon Jan 21 2008 - 04:34:04 CST