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Thread: opensuse 12.1 Btrfs vs ext4 , is it safe to choose btrfs in the installation?

  1. #1

    Default opensuse 12.1 Btrfs vs ext4 , is it safe to choose btrfs in the installation?

    hi there.

    i see that there is option to choose btrfs instead of ext4.

    is it safe to choose btrfs?? anyone have troubles with it (when he testing rc or beta of opensuse 12.1)???

  2. #2
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    Default Re: opensuse 12.1 Btrfs vs ext4 , is it safe to choose btrfs in the installation?

    That's a good question.
    As far as I know, the file system is now mature, but the problem is that it does not still have a fsck tool, making it potentially dodgy in case of brutal shutdown, like power failure.
    https://btrfs.wiki.kernel.org/

    I suppose (I have no info on this, it's just a wild guess, maybe someone will confirm this ?) the idea of the OpenSUSE devs was to propose it anyway, and add the fschk tool later, when it will be functional (which was supposed to happen a few months ago already, it seems).

    I'm no expert in these matters, but personally, I'll stick to the ext4 for now, eventually reinstalling OpenSUSE 12.1 on btrfs partitions when the aforementioned fsck tool is available.

    Oh, and beware : grub does not handle btrfs, so you'll need a separate /boot partition in case you go for the new fancy stuff ...
    OpenSUSE 13.1 x64 on a Asrock H87 Performance, 8Go RAM, Intel core i5 4670, GTX 670. Dual boot Windows 8.1, two separate hard drives.

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    Default Re: opensuse 12.1 Btrfs vs ext4 , is it safe to choose btrfs in theinstallation?

    On 11/16/2011 08:36 AM, Haber Nir wrote:
    >
    > hi there.
    >
    > i see that there is option to choose btrfs instead of ext4.
    >
    > is it safe to choose btrfs?? anyone have troubles with it (when he
    > testing rc or beta of opensuse 12.1)???


    "safe" depends on how _you_ define it...

    personally, i would recommend you use it on a machine with absolutely
    zero data that you wish to keep (AKA: sandbox)!! and always report all
    bugs you find..

    last i heard btrfs continues to be EXPERIMENTAL software..

    read more:

    "it's so fragile (IMO FAT is more stable) that it's not worth trying yet
    .... not a single tool to recover data" cite http://tinyurl.com/bp2tfkq

    "...BTRFS is still experimental, so Ext4 is the safest choice." cite:
    http://en.opensuse.org/SDB:SSD_performance

    finally: i will not use it on my daily driver until it is the default
    install...ymmv

    --
    DD http://gplus.to/DenverD
    http://tinyurl.com/DD-Caveat
    openSUSE®, the "German Automobiles" of operating systems

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    Default Re: opensuse 12.1 Btrfs vs ext4 , is it safe to choose btrfs in theinstallation?

    On 2011-11-16 09:21, DenverD wrote:
    > finally: i will not use it on my daily driver until it is the default
    > install...ymmv


    Not until they put it on SLES/SLED >;-)

    --
    Cheers / Saludos,

    Carlos E. R.
    (from 11.4 x86_64 "Celadon" at Telcontar)

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    Default Re: opensuse 12.1 Btrfs vs ext4 , is it safe to choose btrfs in theinstallation?

    On 11/16/2011 09:53 AM, Carlos E. R. wrote:
    > Not until they put it on SLES/SLED


    excellent point!!

    --
    DD http://gplus.to/DenverD
    openSUSE®, the "German Automobiles" of operating systems

  6. #6

    Default Re: opensuse 12.1 Btrfs vs ext4 , is it safe to choose btrfs in theinstallation?

    Phoronix tested BTRFS vs EXT4 on a SSD with kernel 3.1 and pointed out EXT4 is still much faster than BTRFS: click

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    Default Re: opensuse 12.1 Btrfs vs ext4 , is it safe to choose btrfs in theinstallation?

    Quote Originally Posted by DenverD
    On 11/16/2011 09:53 AM, Carlos E. R. wrote:
    > Not until they put it on SLES/SLED


    excellent point!!
    Hi
    It is there...

    --
    Cheers Malcolm °¿° (Linux Counter #276890)
    openSUSE 11.4 (x86_64) Kernel 2.6.37.6-0.9-desktop
    up 22:02, 3 users, load average: 0.60, 0.30, 0.16
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    Default Re: opensuse 12.1 Btrfs vs ext4 , is it safe to choose btrfs in theinstallation?

    On 11/16/2011 01:14 PM, malcolmlewis wrote:
    > It is there


    as an option....not default installed on a new installation of (say)
    SLES 10 or 11...right?

    --
    DD http://gplus.to/DenverD
    openSUSE®, the "German Automobiles" of operating systems

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    Default Re: opensuse 12.1 Btrfs vs ext4 , is it safe to choose btrfs in theinstallation?

    Quote Originally Posted by DenverD
    On 11/16/2011 01:14 PM, malcolmlewis wrote:
    > It is there


    as an option....not default installed on a new installation of (say)
    SLES 10 or 11...right?
    Hi
    Not in SLE 10 or earlier versions of SLE 11. Can't remember now if it
    was the default... Won't be downloading the latest beta until this
    evening..

    --
    Cheers Malcolm °¿° (Linux Counter #276890)
    openSUSE 11.4 (x86_64) Kernel 2.6.37.6-0.9-desktop
    up 23:20, 3 users, load average: 0.29, 0.14, 0.08
    GPU GeForce 8600 GTS Silent - Driver Version: 285.05.09


  10. #10
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    Default Re: opensuse 12.1 Btrfs vs ext4 , is it safe to choose btrfs in the installation?

    I've tested BTRFS on Tumbleweed for 2-3 months.
    Feels snappier doing lots of small I/O compared to ext4 (may be placebo), but it is EXTREMELY fragile.
    You can lose entire partition because of power failure.

    I've encountered 3 filesystem corruptions and lost my /home twice (but I had partition backups of course!).

    So even though I was excited about it (you can find my old posts about "how fast it is")...
    I wouldn't recommend it yet. I even discourage until fsck is available.
    OR You can end up with ugly kernel error screen during system boot
    Desktop: Intel Q8300@3,3Ghz, 4GB RAM, Foxconn P35A, Sapphire HD5670, OpenSUSE x64
    Server: Via C3@1.4Ghz, 768MB RAM, 8GB Microdrive + OpenSuSE x86
    and other boxes running Windoze

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