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Bug #9838

Zpool split can create a corrupted pool

Added by Pavel Zakharov about 1 year ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Start date:
2018-09-13
Due date:
% Done:

0%

Estimated time:
Difficulty:
Bite-size
Tags:
needs-triage

Description

The issue is that if we are resilvering the 2nd mirror device in a pool and then launch zpool split, the zpool split will succeed, but because there is still some DTLs on the 2nd device the new splitted-off pool will be corrupted.

See original ZFS on Linux issue for more details: https://github.com/zfsonlinux/zfs/issues/7865.
There's a ZoL fix here: https://github.com/zfsonlinux/zfs/pull/7881.

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