Craig Tierney wrote:
My concern wouldn't be the stability of the xfs filesystem. We have
used it for almost 5 years now in the configuration discussed above.
The filesystems weren't as large as 16TB (no more than 2TB), but
that is so we could divide performance over several servers.
My concern with this setup isn't xfs, it would be the stability of
the storage. Also, if there is a disk hiccup (which will happen) that
repairing a 16 TB filesystem takes a long time. A distributed
filesystem (PVFS2, Ibrix, etc) you would only have to fix the one
volume, not the entire filesystem. There may be some filesystem
consistency checks after repair, but not to the extent of a full
filesystem check.
With AoE based Coraid or the iSCSI based IBrix and others, you localize
hardware raid to a single disk tray. Then you mirror trays. Disk
hiccups should not impact the fs.
The Coraid driver is FOSS, and we make RPMs of it available to our
customers from our download site.
Joe
--
Joseph Landman, Ph.D
Founder and CEO
Scalable Informatics LLC,
email: [EMAIL PROTECTED]
web : http://www.scalableinformatics.com
phone: +1 734 786 8423
fax : +1 734 786 8452
cell : +1 734 612 4615
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