[Lustre-discuss] Userspace MDS?

[Andreas Dilger]

On Apr 22, 2008  10:53 +0200, Niklas Edmundsson wrote:
> On Mon, 21 Apr 2008, Andreas Dilger wrote:
> 
> > On Apr 19, 2008  15:52 -0700, James Hartley wrote:
> >> I have heard rumors to the affect that there will be a sparc release
> >> of lustre incorporating zfs.  If this is true does anyone know how I
> >> can get a copy, beta test, or sign up for the effort.
> >
> > This is somewhat true.  There is work well underway for using ZFS
> > as a Lustre back-end filesystem, planned delivery Dec 2008.  As
> > part of this work, the servers will be moved to run in userspace,
> > and as a result Lustre servers will be available on Solaris.
> 
> Does this include moving the MDS to userspace? Last time I looked at 
> http://wiki.lustre.org/index.php?title=Lustre_OSS/MDS_with_ZFS_DMU it 
> only talked about the OSS's, but it would really be nice to also have 
> the MDS not dragging the kernel down with it when it crashes...

Yes, there is also work underway for uMDS servers.  They will both be
in the 2.0 release.

Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.