On May 15, 2007, at 9:37 AM, XIU wrote:
Hey,
I'm currently running on Nexenta alpha 6 and I have some corrupted
data in a pool.
The output from sudo zpool status -v data is:
pool: data
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
data ONLINE 0 0 10
c2d0 ONLINE 0 0 0
c1d0 ONLINE 0 0 0
c3d0 ONLINE 0 0 0
c4d0 ONLINE 0 0 0
c0d1 ONLINE 0 0 10
errors: The following persistent errors have been detected:
DATASET OBJECT RANGE
1c8 10a5 lvl=0 blkid=1919
When accessing the file I'll get an I/O error, is it possible to
clear the error and overwrite the corrupted data with all zeroes? I
don't know how much data that is corrupted but it's from the Ubuntu
7.04 iso which is downloaded with a torrent and my client hangs at
34% in checking it. If I could just clear the corrupted data the
client would pick it up and just redownload that part.
Kind regards,
Steve
hey steve,
So you already figured out which file was corrupted by translating
the object number to an actual filepath? and its the Ubuntu 7.04 iso
file?
Can you just remove the file or does that error out?
If you can upgrade your bits, then 'zpool status -v' will be more
informative:
http://blogs.sun.com/erickustarz/entry/damaged_files_and_zpool_status
From your output, just one block is corrupted (blkid 1919).
eric
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