Re: Btrfs

From: Robert Klemme <>
Date: Wed, 19 Oct 2011 21:41:53 +0200
Message-ID: <>

On 10/19/2011 05:46 PM, Mladen Gogala wrote:
> Recently, Oracle decided to close OCFS2 for all Linux vendors, except the
> O(E)L versions. That decision might make sense if the next generation
> file system being developed at Oracle Corp., the beast called "Btrfs",
> will have cluster capabilities. The design goals are described on
> Wikipedia:
> It is not a clustered file system but only "a better ZFS". With OCFS2
> becoming closed source and GFS2 not being supported, that is a big
> restriction for Linux users. Does anybody have any rumors? What are
> Oracle plans with respect to the cluster file systems? I finally
> succeeded in installing RAC on my F14 box, using my Ubuntu 10.10 laptop
> as the file server, which is less than ideal solution.
> Will Oracle support GFS2? Single instance performance on GFS2 looks quite
> OK and not worse than the performance on Ext4. I will make a test suite
> and benchmark single instance on GFS2, Btrfs and Ext4, just to see
> whether there are any differences.

I can't provide any rumors but there are more contenders in the cluster file system area:

  • glusterfs: I don't think this is ready for production yet - at least that's my impression from looking at the users mailing list. Feature wise it seems pretty good (load balancing, failover, RAID levels etc.)
  • AFS: comes with Scientific Linux (another RH clone), haven't tried it yet.
  • Coda: apparently a descendant from earlier AFS, not looked at closer either

Kind regards

        robert Received on Wed Oct 19 2011 - 14:41:53 CDT

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