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What is your computer's file system? | Log In/Create an Account | Top | 74 comments | Search Discussion
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  • (Score: 3, Informative) by rleigh on Thursday February 09 2017, @11:12PM

    by rleigh (4887) on Thursday February 09 2017, @11:12PM (#465307) Homepage

    XFS is a good filesystem. But it's not perfect. At work, we lost an entire openstack cluster just before Christmas, due to loss of the XFS storage. Likely a transient disk or memory hardware error, but it proved to be completely unrecoverable, even with the XFS tools.

    RedHat seem to be falling back to XFS + LVM in the absence of Btrfs being anywhere remotely near production readiness. But XFS doesn't go much beyond metadata journalling; it's still very much a filesystem of the 90s, albeit a good one. It doesn't do data journalling, and it doesn't do block level hashing/checksumming, and it can't self heal or scrub itself. There is zero protection from data errors.

    This is an area where there's a good bit of cognitive dissonance going on at the moment. The harsh truth of the matter is that Linux doesn't have a top notch native filesystem *at all* right now. You can use ZFS if you are able to use third-party modules. And at work we use expensive IBM GPFS stuff. But while Linux has a huge number of filesytems provided natively, they are all, for one reason or another, crap in different ways.

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  • (Score: 2) by linuxrocks123 on Wednesday February 15 2017, @03:32AM

    by linuxrocks123 (2557) on Wednesday February 15 2017, @03:32AM (#467213) Journal

    I've been trying out NILFS2 on a new system. So far it isn't crap, and its auto-snapshot capability has already saved me from an rm -r I later wanted to undo.

    Not that I would describe ext4 and XFS as crap, either, though.