<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>we setup drbd with ocfs2 on SSD Harddrives, to get the maximum performance for our webserver(s) and SQL Server.</div>
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<div>Unfortunatly, the response time from the webserver is multiplicated with the factor 5-8 for ocfs2.</div>
<div>Without OCFS2, the response time is ~200 MS, with ocfs2 its about 1.5 seconds.</div>
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<div>We tested drbd +ocfs2 in a primary/secondary configuration, no changes are made to the performance. Still the bad response time.</div>
<div>Than, we format the drbd drive with ext4 and get maximum performance, so the issue is related to ocfs2.</div>
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<div>We followed the instructions on 2 different online howto´s , to setup ocfs2 (doesnt look heavy to do something wrong :)</div>
<div>is this normal, or are there "switches" to pull, to gain less response time.</div>
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<div>The funny thing is, we have another cluster with drbd and ocfs2 running in production, with NFS on the DRBD + oxfs2 filer. The responsetime is very quick, but only if we use the nfs mount.</div>
<div>If we include a webserver node, with "direct" ocfs2 mount, we get also bad performance, so a lil hint would make us happy :)</div>
<div>thanks for your time</div></div></body></html>