Hi, Is their any gotcha when using ResiserFs as a file system? -- Thanks http://www.911networks.com When the network has to work
centos at 911networks.com wrote:> Hi, > > Is their any gotcha when using ResiserFs as a file system? > >other than not being supported by standard CentOS kernels?
centos at 911networks.com wrote:> Hi, > > Is their any gotcha when using ResiserFs as a file system? >You have to be careful with which OSes you use it with, for example, you can't really get a "base install" with ReiserFS, nor a default RescueCD with it...you'd want to choose a partition to dedicate for ReiserFS, and make sure you had among your DR tools a disk that has ReiserFS kernel module and tools. ReiserFS is more CPU intensive, so using it on a lower-powered CPU will have more load. ReiserFS also is not a "robust" as extX file systems. So if you kick your power cord out when someone sends you a killer joke, ReiserFS is more likely to lose data. Hearsay has it that it's harder to recover data from. My opinion on when to use ReiserFS is under these conditions: - stable server, backups and raid - used on an appropriate volume, not all volumes - you want conserve disk space because you're handling a large volume of files that are typically smaller than your filesystem block size (for example, you'd lose a lot space in /var/spool/imap if your ext3 fs blocksize was 8K. - you have DR utilities to cope Jed
On Sun, Jan 27, 2008, centos at 911networks.com wrote:>Hi, > >Is their any gotcha when using ResiserFs as a file system?We used reiserfs for a while on SuSE systems thinking that it would be OK because it was the default. Unfortunately I have had several occassions where we had massive data loss with reiserfs so haven't used for several years. We moved to ext3 on the ``/'' file system with xfs on other file systems on SuSE with no problems. The ext3 systems seem to be bullet proof, and xfs doesn't require fsck in most cases. We have used ext3 on all the CentOS systems as it doesn't support xfs in the default configuration. Bill -- INTERNET: bill at celestial.com Bill Campbell; Celestial Software LLC URL: http://www.celestial.com/ PO Box 820; 6641 E. Mercer Way FAX: (206) 232-9186 Mercer Island, WA 98040-0820; (206) 236-1676 DOS: n., A small annoying boot virus that causes random spontaneous system crashes, usually just before saving a massive project. Easily cured by UNIX. See also MS-DOS, IBM-DOS, DR-DOS.
On 1/28/08, centos at 911networks.com <centos at 911networks.com> wrote:> Is their any gotcha when using ResiserFs as a file system?Aside from not being supported by the CentOS kernels in base/updates, I would recommend against it. No major distributor seems to put development effort into reiserfs anymore and I have seen a lot of people having major recovery problems with it (e.g. when the internaly tree is badly damaged, reiserfs fsck may try to merge anything that looks like a reiserfs filesystem, like filesystems in disk images). -- Daniel