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Thread: Btrfs In Linux 3.10 Gets Skinny Extents, Quota Rebuilds

  1. #1
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    Default Btrfs In Linux 3.10 Gets Skinny Extents, Quota Rebuilds

    Phoronix: Btrfs In Linux 3.10 Gets Skinny Extents, Quota Rebuilds

    The Btrfs file-system pull request by Chris Wilson has been submitted for inclusion into the Linux 3.10 kernel...

    http://www.phoronix.com/vr.php?view=MTM2OTI

  2. #2
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    Quote Originally Posted by phoronix View Post
    Phoronix: Btrfs In Linux 3.10 Gets Skinny Extents, Quota Rebuilds

    The Btrfs file-system pull request by Chris Wilson has been submitted for inclusion into the Linux 3.10 kernel...

    http://www.phoronix.com/vr.php?view=MTM2OTI
    Chris Wilson???

    Should be Chris Mason.
    Last edited by jwilliams; 05-09-2013 at 06:05 PM.

  3. #3
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    I've been hearing about BTRFS for years, but it seems it is not fully stable, yet they throw new features with each kernel version... am I missing something ?

  4. #4
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    Quote Originally Posted by wargames View Post
    I've been hearing about BTRFS for years, but it seems it is not fully stable, yet they throw new features with each kernel version... am I missing something ?
    Not really, people work on what they want to work on. Someone on the dev team is gonna be OCD about fixing every bug, for someone else apparently the extents tree was too big for their uses / likes so they changed it, for someone else apparently quotas weren't working quite right so they changed them. All of the major issues about BTRFS have been worked out, im running it on my home server and the only thing that bugs me is there's no fsck.btrfs (but there is btrfsck) and grub-mkconfig freaks out about btrfs being split over two drives but it still properly makes the grub.cfg and boots just fine.

  5. #5
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    Quote Originally Posted by wargames View Post
    I've been hearing about BTRFS for years, but it seems it is not fully stable, yet they throw new features with each kernel version... am I missing something ?
    Its not stable?
    I've been running it for a year without issue.

  6. #6
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    Quote Originally Posted by dalingrin View Post
    Its not stable?
    I've been running it for a year without issue.
    The question is: have you found it to be better than ext4 ?

  7. #7
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    Quote Originally Posted by wargames View Post
    The question is: have you found it to be better than ext4 ?
    In my experience, definitely.

  8. #8
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    Quote Originally Posted by dalingrin View Post
    Its not stable?
    I've been running it for a year without issue.
    There's multiple definitions of software stability. One talks about reliability. In this case it talks about rate of development.

  9. #9

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    Quote Originally Posted by wargames View Post
    The question is: have you found it to be better than ext4 ?
    I use BTRFS on my large storage drives. i have a btrfs 'raid1' across 3x 3TB drives. btrfs checksums all the data, which gives me confidence that its safe. having the raid in the filesystem means that scrubs or repairs only needs to look at blocks that are actually used. it also means that if the 2 copies differ the filesystem knows which one is correct.

    the only problem i have ever hit is when i moved added a second drive to an existing btrfs filesystem, and re-striped it to be raid1. I forgot (and the tools did not tell me) to make the metadata raid1 (it was still DUP). when I tried to replace one of the drives (due to SMART errors) there was not a full copy of the metadata on the second drive. I had to put the failing drive back in, re-stripe the metadata and then replace the disk. all went fine and no data was lost. but it would be nice if the tools made sure your metadata was at least as redundant as the data.

  10. #10
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    May 2013
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    Default I have been wanting to change for a while now.

    So would a btrfs filesystem with LZO compression and LVM encryption be reliable?

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