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A collection of patches for pool recovery #4186

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wants to merge 2 commits into from
Closed

A collection of patches for pool recovery #4186

wants to merge 2 commits into from

Commits on Sep 12, 2016

  1. Allow -F to regenerate missing vdev labels 

    The per-vdev nvlist configuration information can be automatically
regenerated given a valid zpool.cache file.  Extend the existing
'-F' recovery option to add this behavior for missing or corrupt
labels.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
    @behlendorf
    behlendorf committed Sep 12, 2016
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  2. Allow rollback to arbitrary txg 

    This patch will disable the logic which prevents you from rolling
back to an arbitrary txg.  Normally a txg which is older than the
last label update cannot be used for import.  There is no way to
know that the given txg is consistent with the current configuration.
This should only be used as a last resort for pool recovery when
you encounter the following failure mode.

$ zpool import -o readonly=on -T 123456 tank
cannot import 'tank': one or more devices is currently unavailable

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue openzfs#2452
    @behlendorf
    behlendorf committed Sep 12, 2016
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