Interrupt fencing on Sun

From: fairlie rego <>
Date: Mon, 21 Jan 2008 21:34:04 +1100 (EST)
Message-ID: <>


  On a 8 node 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    

  Thanks much

          Fairlie Rego
Senior Oracle Consultant
  M: +61 402 792 405            

Make the switch to the world's best email. Get the new Yahoo!7 Mail now.
-- Received on Mon Jan 21 2008 - 04:34:04 CST

Original text of this message