Very useful information John. Thank you. (Your email slipped through the cracks and I just saw it by accident. I'm happy I didn't loose it.) On Fri, Sep 20, 2013 at 3:21 PM, John R Pierce <pierce at hogranch.com> wrote: > On 9/20/2013 2:27 PM, Peter Wood wrote: > > XFS worked. Thanks a lot. > > for large xfs file systems, be sure to mount with option inode64. > > there's one caveat on XFS in Linux, when used as a nfs export... if you > JUST export your file system root, then you're fine, but if you like to > have multiple seperate exports on the same file system, NFS does NOT > like the 64 bit inode numbers, so you HAVE to specify manual arbitrary > unique export fsid numbers. I usually just use fsid=1,2,3,... for the > exports. AFAIK, they only have to be unique within the file system. > there's an fsid=uuid option but I ran into multiple problems in my > heterogeneous production environment with this, too. > > also, natch, you should ONLY use xfs on a 64bit OS. I think its > intentionally disabled on 32bit, but if you were to try and force it, > you'd get into data corruptions or kernel panics. > > and, a large XFS file system requires quite a bit of RAM to do the > xfs_check/repair (equiv to fsck) > > > -- > john r pierce 37N 122W > somewhere on the middle of the left coast > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >