We've used AoE (CoRAID hardware) with pretty good success (modulo one
RAID shelf fire that was caused by a manufacturing defect and dealt with
promptly by CoRAID). We've had some reliability issues with Areca cards
but no data corruption on the systems we've built that way.
gerry
Bruce Allen wrote:
Hi Xavier,
PPS: We've also been doing some experiments with putting
OpenSolaris+ZFS on some of our generic (Supermicro + Areca) 16-disk
RAID systems, which were originally intended to run Linux.
I think that DESY proved some data corruption with such
configuration, so they switched to OpenSolaris+ZFS.
I'm confused. I am also talking about OpenSolaris+ZFS. What did
DESY try, and what did they switch to?
Sorry, I am indeed not clear. As far as I know, DESY found data
corruption using Linux and Areca cards. They moved from linux to
OpenSolaris and ZFS, avoiding other corruption. This has been
discussed in HEPiX storage workgroup. However, I can not speak on
their behalf at all. I'll try to get you in touch with someone more
aware of this issue, as my statements lack of figures.
I think that would be very interesting to the entire Beowulf mailing
list, so please suggest that they respond to the entire group, not just
to me personally. Here is an LKML thread about silent data corruption:
http://kerneltrap.org/mailarchive/linux-kernel/2007/9/10/191697
So far we have not seen any signs of data corruption on Linux+Areca
systems (and our data files carry both internal and external checksums,
so we would be sensitive to this).
Cheers,
Bruce
_______________________________________________
Beowulf mailing list, Beowulf@beowulf.org
To change your subscription (digest mode or unsubscribe) visit
http://www.beowulf.org/mailman/listinfo/beowulf
--
Gerry Creager -- [EMAIL PROTECTED]
Texas Mesonet -- AATLT, Texas A&M University
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.862.3983
Office: 1700 Research Parkway Ste 160, TAMU, College Station, TX 77843
_______________________________________________
Beowulf mailing list, Beowulf@beowulf.org
To change your subscription (digest mode or unsubscribe) visit
http://www.beowulf.org/mailman/listinfo/beowulf
