Hi there,
Is there a way to get as much data as possible off an existing slightly
corrupted zpool? I have a 2 disk stripe which I'm moving to new storage. I
will be moving it to a ZFS Mirror, however at the moment I'm having problems
with ZFS Panic'ing the system during a send | recv.
I don't know exactly how much data is valid. Everything appears to run as
expected and applications aren't crashing.
Doing an $( ls -lR | grep -i "IO Error" ) returns roughly 10-15 files which
are affected. Luckily, these files ls is returning aren't super critical.
Is it possible to tell ZFS to do a emergency "copy as much valid data off
this file system"?
I've tried disabling checkums on the corrupted source zpool. But even
still, once ZFS runs into an error the zpool is FAULTED and the kernel
panic's and the system crashes. Is it possible to tell the zpool to ignore
any errors and continue without faulting the zpool?
We have a backup of the data, which is 2 months old. Is it slightly
possible to bring this backup online, and 'sync as much as it can' between
the two volumes? Could this just be a rsync job?
Thanks
[root]# zpool status -v apps
pool: apps
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://www.sun.com/msg/ZFS-8000-8A
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
apps ONLINE 0 0 120
c1t1d0 ONLINE 0 0 60
c1t2d0 ONLINE 0 0 0
c1t3d0 ONLINE 0 0 60
errors: Permanent errors have been detected in the following files:
apps:<0x0>
<0x1d2>:<0x0>
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