Re: Btrfs
From: Robert Klemme <shortcutter_at_googlemail.com>
Date: Wed, 19 Oct 2011 21:41:53 +0200
Message-ID: <9g8ng2FktuU1_at_mid.individual.net>
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: http://en.wikipedia.org/wiki/Btrfs
> 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.
Date: Wed, 19 Oct 2011 21:41:53 +0200
Message-ID: <9g8ng2FktuU1_at_mid.individual.net>
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: http://en.wikipedia.org/wiki/Btrfs
> 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