On 08/04/2012 10:05 PM, Keith Keller wrote: > On 2012-08-04, Johnny Hughes <johnny@xxxxxxxxxx> wrote: >> As Nux! initially said, ext4 is the OS that RHEL and Fedora support as >> their main file system. I would (and do) use that. The 6.3 kernel does >> support xfs and CentOS has the jfs tools in our extras directory, but I >> like tried and true over experimental. > Isn't XFS on linux tried and true by now? It's always worked great for > me. I suppose that depends on your definition. It has only JUST become supported on RHEL ... > > Does ext4 resolve the issue of slow fsck? Recently I had a ~500GB ext3 > filesystem that hadn't been checked in a while; it took over 20 minutes > to fsck. Meanwhile, a few months ago I had a problematic ~10TB XFS > filesystem, and it took about 1-2 hours to fsck (IIRC 1.5 hrs). This > was also a reason I switched away from reiserfs (this was well before > Hans Reiser's personal problems)--a reiserfsck of a relatively modest > filesystem took much longer than even an ext3 fsck. > > If I get some time I will try it on some spare filesystems, but I'm > curious what other people's experiences are. > > I've looked into ZFS on linux, but it still seems not quite ready for > real production use. I'd love to test it on a less crucial server when > I get the chance. Their FAQ claims RHEL 6.0 support: > > http://zfsonlinux.org/faq.html My experience is that I normally do not have any issues with ext3 on EL5 or ext4 on EL6 ... problems being that I can not use the system because the IO is too slow, for example. Other people might want to pick and prod and get the top 5 or 6% performance they can out of a machine ... I would rather use what is supported unless there is a reason that I can not do it in production. That is why it's your machine ... you get to do whatever you want ... and keep all the pieces :D
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