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Description of problem: Since lvm2 is not capable to recover all possible broken variants of thin pool brokenness we need to create a documentation which will provide step-by-step guide how to move-on with repair of broken pool. lvm2 provides some useful low-level command which should allow to fix and sync broken thin pool kernel metadata with lvm2 metadata. Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info:
There will be no change to the lvm2 package for this, but some documentation will be provided, perhaps as a KB article.
Information has been added to the lvmthin(7) man page to try to shed more light on what should be done when devices fail in a thin-pool. The section "Metadata check and repair" has been added. This is not sufficient to describe all problems though, but it should be sufficient for this release. I won't close this bug, but I will push it to 6.8. We can consider at that time what new information can be added.