Well today I did clean installs on 3 test machines. For the server I used the openfiler (latest from sourceforge iso) as the server os, using a 500 gig sata drive and exporting as iscsi.
I then installed CentOS 4.4 on two servers, ran the yum updates, and then installed the ocfs2 kernel and tools, devel and debug rpms. After my previous experience i was able to get up and going very quickly since i didnt have to relearn how to do the iscsi stuff and edit the ocfs2 config. I havent had a chance to really test it yet as the machines just finished updating awhile ago but they can mount the drive, so I am excited at seeing some progress. One one node I was able to do a copy from /tmp (hda3) of a 771 meg maildir to the ocfs2 mount over iscsi. Took about 1 minute, using gige (no jumbo frames, just a cheap switch). I used the -T mail option for mkfs.ocfs2 and mounted with _netdev,nointr in fstab. I briefly went over our PRTG logs and it looks our current NFS server that stores our mail data moves about 114 gigabytes a day of traffic on our switch (total in and out). Doing simple math and not taking into account spurts its about 1.6 megabytes per second I think, so I am hoping this will work out quite well for us. One thing I did notice is that the server (running openfiler) went up to 7+ load. Im wondering/thinking of just reinstalling it with centos and isntalling the iscsi-target from source (newer version i think). This is a pentium d 3ghz, 8gig ram machine. I was supprised to see it go to 7 with just 1 node copying data to it. But this is an iscsi issue i assume so i'll mess with that plus network tuning. All in all, I am happy with the results today, mostly because I have had no crashes or errors or kernels panics/reboots or anything. _______________________________________________ Ocfs2-users mailing list Ocfs2-users@oss.oracle.com http://oss.oracle.com/mailman/listinfo/ocfs2-users
