<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
<title></title>
</head>
<body text="#000000" bgcolor="#ffffff">
Two things to check would be the latency in the interconnect<br>
and the io thruput of the shared device.<br>
<br>
Use ping -I to determine the latency of the interconnect. A gige<br>
in our lab shows approx 150 microsecs.<br>
<br>
IO thruput is trickier. One needs to hammer the disk concurrently<br>
from both the nodes. See if the thruput falls as compared to just<br>
one node.<br>
<br>
On 02/28/2011 11:03 PM, Mauro Parra wrote:
<blockquote
cite="mid:AANLkTi=Smm0SXuzTBk9TmmLGz1Th3fZABcVwAhRQ9EHP@mail.gmail.com"
type="cite">Hello,
<div>I have a cluster with two nodes, with SLES10 as base system.
First I powered on one node, and the system is working just
fine. Then, when a second node was added, the performance came
down pretty bad. </div>
<div>
<br>
</div>
<div>Any hints or ideas about this behaviour? </div>
<div><br>
</div>
<div>TIA, </div>
<div>M<br clear="all">
<br>
-- <br>
Saludos, <br>
<br>
Mauro Parra-Miranda<br>
Consultor Senior Novell - <a moz-do-not-send="true"
href="mailto:mparra@novell.com" target="_blank">mparra@novell.com</a><br>
openSUSE Developer - <a class="moz-txt-link-abbreviated" href="mailto:mauro@openSUSE.org">mauro@openSUSE.org</a><br>
<div>BB PIN - 22600AE9</div>
<br>
</div>
<pre wrap="">
<fieldset class="mimeAttachmentHeader"></fieldset>
_______________________________________________
Ocfs2-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Ocfs2-users@oss.oracle.com">Ocfs2-users@oss.oracle.com</a>
<a class="moz-txt-link-freetext" href="http://oss.oracle.com/mailman/listinfo/ocfs2-users">http://oss.oracle.com/mailman/listinfo/ocfs2-users</a></pre>
</blockquote>
<br>
</body>
</html>