RE: HMP Vs UDP

Also, think about multiple interconnects for redundancy and Hardware
Clustering requirements....


greg

-----Original Message-----
From: Tanel Põder [mailto:tanel.poder.003@xxxxxxx] 
Sent: Monday, June 28, 2004 1:56 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: Re: HMP Vs UDP

Sorry about late reply (I got about 3000 posts of backlog :)
The most obvious comparision between UDP and HMP is that UDP runs over
regular ethernet, HMP requires very expensive special hardware, so unless
your interconnect traffic is very active and needs very low latencies then
go with ethernet+UDP - it's simpler and cheaper.

Tanel.
  ----- Original Message ----- 
  From: k.sriramkumar@xxxxxxxxxxxxxxxxxx 
  To: oracle-l@xxxxxxxxxxxxx 
  Sent: Tuesday, June 01, 2004 6:49 PM
  Subject: HMP Vs UDP


  Hi Guru's

      We are testing RAC on HP-UX 11.11. Our Cluster Interconnect is UDP.
One of my colleagues is recommending the use of HMP instead of UDP for
performance reasons. I am unable to find any comparative study between UDP
and HMP. Any pointers would be helpful

  Best Regards

  Sriram Kumar 

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