>>>>> On Wed, 8 Feb 2012 20:22:46 -0600, Mark said:
>
> Just checking to see if people are having success with storage daemon
> running on FreeBSD 9.0 with ZFS and compression enabled? I ask because I'm
> having issues with the backups completing without any errors reported, but
> then an immediate restore attempt fails due to block checksum mismatches,
> or trying something like 'bls -j -v -V Full-0079 FileStorage1' will fail
> and exit with a block checksum mismatch.
>
> The pool is a raidz1 made up of 5 1.5TB drives. I can run a scrub, get a
> clean result, run a backup, then have a restore from that backup fail (only
> for larger backups, small ones seem fine). A scrub run after that will
> also report errors, usually 1 or 2 out of roughly 600GB of data, and it
> will show them as repaired. I'm just trying to determine if I'm being
> bitten by the SATA controller, it's an ' <ATI IXP700 AHCI SATA controller>'
> and I have to set the storage type to IDE instead of AHCI and set
> 'hint.ahci.0.msi=0' in loader.conf or the system can't even see the drives.
> Or maybe what I'm trying here is a bad idea? I'd just like the
> compression without the overhead and slowdown on the clients that comes
> from enabling compression in the fileset. I'm a FreeBSD neophyte, is the
> SATA/AHCI stuff just not good yet or would much better results be likely
> with a newer board/controller?
I think your ZFS setup should work fine, but I don't know about your specific
hardware.
You must have hardware problems -- not necessarily in the SATA controller
though. The block checksum mismatches suggest that the wrong data was written
to the disk.
Have you got EC RAM? Have you run Memtest86?
__Martin
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