[zfs-discuss] Lost data from a RAIDZ2
ryan at zbit.net.au
Wed Oct 16 10:32:18 EDT 2013
You are using ECC Memory right? It would be strange to be using SAS and
On 16/10/2013 10:15 PM, Roger Bell_West wrote:
> Running current code on Debian/wheezy.
> # zpool status -x
> pool: storage
> state: ONLINE
> status: One or more devices has experienced an error resulting in data
> corruption. Applications may be affected.
> action: Restore the file in question if possible. Otherwise restore the
> entire pool from backup.
> see: http://zfsonlinux.org/msg/ZFS-8000-8A
> scan: scrub repaired 0 in 14h21m with 2 errors on Sun Oct 13 13:21:30 2013
> NAME STATE READ WRITE CKSUM
> storage ONLINE 0 0 24
> raidz2-0 ONLINE 0 0 48
> pci-0000:01:00.0-sas-0x0000000000000000-lun-0 ONLINE 0 0 0
> pci-0000:01:00.0-sas-0x0100000000000000-lun-0 ONLINE 0 0 0
> pci-0000:01:00.0-sas-0x0200000000000000-lun-0 ONLINE 0 0 0
> pci-0000:01:00.0-sas-0x0300000000000000-lun-0 ONLINE 0 0 0
> pci-0000:01:00.0-sas-0x0400000000000000-lun-0 ONLINE 0 0 0
> pci-0000:01:00.0-sas-0x0500000000000000-lun-0 ONLINE 0 0 0
> pci-0000:01:00.0-sas-0x0600000000000000-lun-0 ONLINE 0 0 0
> pci-0000:01:00.0-sas-0x0700000000000000-lun-0 ONLINE 0 0 0
> errors: 1 data errors, use '-v' for a list
> OK, I can see which file has the problem. But what has gone wrong
> here? All the discs appear to be healthy, and anyway Z2 is supposed to
> take care of that. The file was written to once, early in this
> machine's life (in July), and hasn't been modified since. This error
> didn't show up until I tried to read the file today...
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