RE: HMP Vs UDP

From: Loughmiller, Greg <greg.loughmiller_at_cingular.com>
Date: Mon, 28 Jun 2004 14:53:45 -0400
Message-ID: <5164A49467308C45AD50661F8CFDC34312E823D7@s30342g004004.wdc.cingular.net>

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

greg

-----Original Message-----

From: Tanel Põder [mailto:tanel.poder.003_at_mail.ee] Sent: Monday, June 28, 2004 1:56 PM
To: oracle-l_at_freelists.org
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_at_iflexsolutions.com To: oracle-l_at_freelists.org 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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Received on Mon Jun 28 2004 - 13:51:42 CDT