Loic Tortay <[EMAIL PROTECTED]> writes: > During the last HEPiX meeting, Peter Kelemen mentionned something told > to him by a ZFS developer (Jeff Bonwick, if I'm not mistaken) about > data corrupted by a Fibre Channel HBA during transfer between disk and > host. ZFS, reportedly, detected (and corrected) the corruption. > Of course a ZFS developer may be biased.
AFAIU, ZFS is designed specifically to handle such situations, but I'd like to see large scale tests over a range of different hardware. > I'm probably mis-remembering some of the technical details about this, > since they seem quite unlikely now (something about the laser beam > being somehow "corrupted", but I think this would be detected by the > Fibre Channel link protocols or upper layers checksums). Yeah, I guess it should. But we recently lost 11 TB data due to a FC switch port silently trashing a small proportion of the data passing through it. (Quite possibly ZFS would have saved us.) And I've seen three similiar incidents at other places in the last few months. So I have turned up my cynicism knob yet a few notches. -- Leif Nixon - Systems expert ------------------------------------------------------------ National Supercomputer Centre - Linkoping University ------------------------------------------------------------ _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
