Hi, I am currently running a 10 Node OCFS2 Cluster (version 1.3.9-0ubuntu1) on Ubuntu Server 8.04 x86_64. Linux n1 2.6.24-24-server #1 SMP Tue Jul 7 19:39:36 UTC 2009 x86_64 GNU/Linux
The Cluster is connected to a 1Tera iSCSI Device presented by an IBM 3300 Storage System, running over a 1Gig Network. Mounted on all nodes: /dev/sdc1 on /cfs1 type ocfs2 (rw,_netdev,data=writeback,heartbeat=local) Maximum Nodes: 32 Block Size=4k Cluster Size=4k My testing shows that to write simultaneously from the 10 nodes, 10 x 200Meg files (1 file per node, total of 2Gig) takes ~23.54secs. Reading the files back can take just as long. Do these numbers sound correct? Doing dd if=/dev/zero of=/cfs1/xxxxx/txt count=1000 bs=2048000 (2Gig) from a single node takes 16secs. (running the same dd command on an XFS filesystem connected to the same iSCSI Storage takes 2.2secs) Is there any tips & tricks to improve performance on OCFS2? Thanks in advance Laurence _______________________________________________ Ocfs2-users mailing list [email protected] http://oss.oracle.com/mailman/listinfo/ocfs2-users
