Hi list, <div><br></div><div>I have a question concerning number of OCFS2 volumes per cluster.</div><div><br></div><div>From our storage vendor we received recommendations how to configure mount volumes per database to gain the best possible performance.</div>
<div>Basically, we should separate redo logs,archive logs, temp, data, etc.</div><div><br></div><div>This is not hard to configure but I'm concerned about this line that I've found on Oracle support site:</div><div>
<br></div><div><div>Linux OCFS2 - Best Practices [ID 603080.1]</div><div>Number of volumes</div><div>The mounting of too many OCFS2 volumes (i.e. 50 or more) per cluster is likely to create a performance (process) bottleneck - this is not specifically related to OCFS2. Ideally, it is desirable to have no more than around 20 OCFS2 partitions per system.</div>
<div>See also <a href="http://oss.oracle.com/bugzilla/show_bug.cgi?id=992">http://oss.oracle.com/bugzilla/show_bug.cgi?id=992</a></div></div><div><br></div><div><br></div><div><br></div><div>In our configuration we would need more than 60 OCFS2 mount volumes per cluster so I don't know should we expect any performance problems due to the number of OCFS2 volumes?</div>
<div>What is your recommendation about number of OCFS2 volumes per cluster regarding performance and stability?</div><div><br></div><div><br></div><div>Our kernel and ocfs2 version:</div><div><div># uname -rvp</div><div>2.6.18-274.0.0.0.1.el5 #1 SMP Mon Jul 25 14:33:14 EDT 2011 x86_64</div>
<div><br></div><div># rpm -qa|grep ocfs2</div><div>ocfs2-tools-1.6.3-2.el5</div><div>ocfs2-2.6.18-274.0.0.0.1.el5-1.4.8-2.el5</div><div>ocfs2console-1.6.3-2.el5</div></div><div><br></div><div><br></div><div><br></div><div>
Thank you very much for your help.</div><div><br></div><div>Regards,</div><div>Marko Sutic<div><a href="http://hr.linkedin.com/in/markosutic" target="_blank">My LinkedIn Profile</a></div></div>