Comments on: Using OCFS2, A Clustering File System http://www.linux-mag.com/id/6070/ Open Source, Open Standards Sat, 20 Mar 2010 21:48:28 +0000 http://wordpress.org/?v=2.0.11 by: smushran http://www.linux-mag.com/id/6070/#comment-1192 Mon, 16 Jun 2008 22:38:12 +0000 http://www.linux-mag.com/id/6070/#comment-1192 Correction. OCFS2 has always supported mmap. The only variation it did not originally support was shared writeable mmap for which support was added in 2.6.23. OCFS2 1.4 has this feature and is shipping with SLES10 SP2 currently. Release for OEL and RHEL is in the works. Among non-enterprise distros, ubuntu 'hardy heron' (2.6.24) includes it. opensuse and fc9 should though I have not confirmed it. In short, any distro shipping 2.6.23+ will include this feature. For that and other new features, refer to: http://oss.oracle.com/projects/ocfs2/dist/documentation/ocfs2-new-features.html Correction. OCFS2 has always supported mmap. The only variation it did not originally support was shared writeable mmap for which support was added in 2.6.23.

OCFS2 1.4 has this feature and is shipping with SLES10 SP2 currently. Release for OEL and RHEL is in the works.

Among non-enterprise distros, ubuntu ‘hardy heron’ (2.6.24) includes it. opensuse and fc9 should though I have not confirmed it. In short, any distro shipping 2.6.23+ will include this feature.

For that and other new features, refer to:
http://oss.oracle.com/projects/ocfs2/dist/documentation/ocfs2-new-features.html

]]> by: linest http://www.linux-mag.com/id/6070/#comment-1163 Fri, 06 Jun 2008 13:36:41 +0000 http://www.linux-mag.com/id/6070/#comment-1163 The cluster.conf is more easily created and maintained with the ocfs2console program. It's graphical, it's foolproof. No typos! Lots of documentation (the "OCFS2 Users' Guide" is very well written) here: http://oss.oracle.com/projects/ocfs2/documentation/ The cluster.conf is more easily created and maintained with the ocfs2console program. It’s graphical, it’s foolproof. No typos!

Lots of documentation (the “OCFS2 Users’ Guide” is very well written) here:
http://oss.oracle.com/projects/ocfs2/documentation/

]]> by: jb haywood http://www.linux-mag.com/id/6070/#comment-1158 Fri, 06 Jun 2008 01:08:49 +0000 http://www.linux-mag.com/id/6070/#comment-1158 Not a bad article, worth knowing other cluster technologies out there. What about one on CFS (Lustre)? It's pretty sexy stuff, as cluster file systems go. Not a bad article, worth knowing other cluster technologies out there.

What about one on CFS (Lustre)? It’s pretty sexy stuff, as cluster file systems go.

]]> by: lsk040365 http://www.linux-mag.com/id/6070/#comment-1149 Thu, 05 Jun 2008 19:44:35 +0000 http://www.linux-mag.com/id/6070/#comment-1149 Great article Jeremy! I enjoyed it. I would like to note to the readers that the OCFS2 filesystem is nice in the fact that there is little configuration in setting it up but there are issues you must deal with when connectivity between systems is compromized--In a word--Fencing. Having a back-end private network/VLAN is the probably the answer for the heartbeat connectivity between the nodes as you will most likely find out--hopefully not the hard way. Unfortunately, I experienced fencing issues first-hand when implementing Oracle VM recently. That was an experience in itself I must say! Thanks, Lee Great article Jeremy! I enjoyed it.

I would like to note to the readers that the OCFS2 filesystem is nice in the fact that there is little configuration in setting it up but there are issues you must deal with when connectivity between systems is compromized–In a word–Fencing.

Having a back-end private network/VLAN is the probably the answer for the heartbeat connectivity between the nodes as you will most likely find out–hopefully not the hard way.

Unfortunately, I experienced fencing issues first-hand when implementing Oracle VM recently. That was an experience in itself I must say!

Thanks,
Lee

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