Le Mon, 4 May 2015 07:00:32 +0000 (UTC)
Yujian Peng <pengyujian5201314@xxxxxxx> écrivait:
> I'm encountering a data disaster. I have a ceph cluster with 145 osd.
> The data center had a power problem yesterday, and all of the ceph
> nodes were down. But now I find that 6 disks(xfs) in 4 nodes have
> data corruption. Some disks are unable to mount, and some disks have
> IO errors in syslog. mount: Structure needs cleaning
> xfs_log_forece: error 5 returned
> I tried to repair one with xfs_repair -L /dev/sdx1, but the ceph-osd
> reported a leveldb error:
> Error initializing leveldb: Corruption: checksum mismatch
> I cannot start the 6 osds and 22 pgs is down.
> This is really a tragedy for me. Can you give me some idea to
> recovery the xfs? Thanks very much!
For XFS problems, ask the XFS ML: xfs@xxxxxxxxxxx
You didn't give enough details, by far. What version of kernel and
distro are you running? If there were errors, please post extensive
logs. If you have IO errors on some disks, you probably MUST replace
them before going any further.
Why did you run xfs_repair -L ? Did you try xfs_repair without options
first? Were you running the very very latest version of xfs_repair
(3.2.2) ?
--
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Emmanuel Florac | Direction technique
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