Andrew, I would make sure you use say large cluster and block sizes if possible with the inband FS option enabled (you will loose some space but ive noticed it tends to run a bit better). As for the bug, its one ive been fighting with. However using only 2 nodes will make it take a long time to occur (took 2 yrs on my cluster) with 6 nodes.
David -----Original Message----- From: ocfs2-users-boun...@oss.oracle.com [mailto:ocfs2-users-boun...@oss.oracle.com] On Behalf Of Andrew Robert Nicols Sent: Monday, April 19, 2010 9:26 AM To: ocfs2-users@oss.oracle.com Subject: Re: [Ocfs2-users] Recommended settings for mkfs.ocfs2 Hi Brian, Thank you for taking the time to reply. On Mon, Apr 19, 2010 at 08:53:47AM -0500, Brian Kroth wrote: > lenny-backports has a 2.6.32 based kernel that might already have the > free space fix in it. I haven't checked yet. >From what I can tell, the ENOSPC issue isn't fixed until 2.6.33 (http://oss.oracle.com/bugzilla/show_bug.cgi?id=1189#c25) so the version in backports (or even Squeeze) isn't much help yet I'm afraid. > Also you don't really explain what you're trying to use the data store > for (eg: lots of small files, video files, heavy writes, heavy reads, > random, sequential, etc.). It may impact the options you want to give > to mkfs. Sorry - that didn't occur to me. This is going to be a file store for a variety of user submitted data for a web application (Moodle). At present we have a variety of: * videos * audio * images * database backups (gunzipped tar) * large files (primarily zip) * small files The activity is primarily read with writes too but I'm not sure on the exact characteristics at present. I'd guess fairly random rather than sequential and there are periods with heavy writes. Files are served to 6 frontend web servers over NFS for serving with Apache2. We've currently got 2.2TB of space used. Thank you for your input - if there's anything else which would be useful, I'll see if I can provide it. Andrew -- Systems Developer e: andrew.nic...@luns.net.uk im: a.nic...@jabber.lancs.ac.uk t: +44 (0)1524 5 10147 Lancaster University Network Services is a limited company registered in England and Wales. Registered number: 04311892. Registered office: University House, Lancaster University, Lancaster, LA1 4YW _______________________________________________ Ocfs2-users mailing list Ocfs2-users@oss.oracle.com http://oss.oracle.com/mailman/listinfo/ocfs2-users
