Hi,
Lustre network RAID0 is available now (and has been for years). Network
RAID1 is essentially equally difficult as the general problem, we do not
know if it will be done late 2007, but it is under development.
- Peter -
Lin Shen (lshen) wrote:
Will LAID be available by end of 2007? If not, how hard is it to add
only RAID 0 and 1 across nodes?
Thanks
lin
-----Original Message-----
From: Andreas Dilger [mailto:[EMAIL PROTECTED]
Sent: Tuesday, December 05, 2006 11:41 PM
To: Lin Shen (lshen)
Cc: [email protected]
Subject: Re: [Lustre-discuss] Software RAID support
On Dec 05, 2006 16:58 -0800, Lin Shen (lshen) wrote:
The FAQ says that Lustre supports software RAID. Is the
software RAID
cluster aware? Can I put two partitions from two different
nodes into
the same RAID set?
No. The cluster-aware RAID feature (Lustre RAID = LAID) is
only in the planning stages.
This is only indicating that Lustre can use MD RAID{0,1,5}
devices for a back-end OST or MDT filesystem. That said,
there was a bug just found with Lustre OSTs and software RAID
5 (bug 11313) if you are planning on using software RAID 5
you need a patch.
Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.
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