VDO volume becomes corrupt

General support questions
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HTBCentOS
Posts: 1
Joined: 2018/12/18 09:37:35

VDO volume becomes corrupt

Post by HTBCentOS » 2018/12/18 11:48:55

Hi All,
Looking for some support regarding vdo.
We are using vdo volume to store some backups. Dedup and compression is enabled.
The backup vm sits on RHEV local storage however the backups / vdo volume is a direct attached LUN from an EqualLogic storage.
The vdo volume is created on top of this device

Last night (the second time) the volume suddenly becomes corrupt and enters into read-only mode with no indication of any prev errors.
Dec 17 13:09:09 htpwgvpbk03 kernel: kvdo1:logQ0: Expected page 22991771 but got page 12602881 instead: kvdo: Corrupt or incorrect page (2057)
Dec 17 13:09:09 htpwgvpbk03 kernel: kvdo1:journalQ: Unrecoverable error, entering read-only mode: kvdo: Corrupt or incorrect page (2057)
Dec 17 13:09:09 htpwgvpbk03 kernel: kvdo1:journalQ: Preparing to enter read-only mode: DataVIO for LBN 739820508 (becoming mapped to 0, previously mapped to 0, allocated 0) is completing with a fatal error after operation getMappedBlockF
orWrite: kvdo: Corrupt or incorrect page (2057)

Auto recovery didn't managed to fix the volume.

I have sosreport available from the system.

Kindly advise,
Thanks,
Máté

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