Phil Harman <phil.har...@gmail.com> wrote:

> Changes to the resilvering implementation don't necessarily require 
> changes to the on disk format (although they could). Of course, there 
> might be an issue moving a pool mid-resilver from one implementation to 
> another.

We seem to come to a similar problem as wuth UFS 20 years ago. At that time,
Sun did enhance the UFS on-disk format but the *BSDs did not follow this change 
even though the format change was "documented" in the related include files.

For a future ZFS development, thee may be a need to allow an implementation to 
implement on-disk version 1..21 + 24 and another implementation to support 
on-disk version 1..23 + 25.

These thoughts of course are void in case that Oracle continues the OSS 
decisions for Solaris and other Solaris variants can import the code related to
recent enhancements.



Jörg

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