Re: ZFS feature flags 9.2 -> 8.4?

On Mon, 2 Jun 2014 10:08+0200, Patrick M. Hausen wrote:

> Hi, all,
> =

> can a zpool with these feature flags from RELENG_9_2 be accessed
> and booted (!) by a RELENG_8_4 system?
> =

> FEAT DESCRIPTION
> -------------------------------------------------------------
> async_destroy                         (read-only compatible)
>      Destroy filesystems asynchronously.
> empty_bpobj                           (read-only compatible)
>      Snapshots use less space.
> lz4_compress                         =

>      LZ4 compression algorithm support.
> =

> There is a chance I need to downgrade a production system.
> Not quite sure yet, but I wanted to check the possibilities ...
> =

> Thanks a lot,
> Patrick

r248810 of =

releng/8.4/cddl/contrib/opensolaris/cmd/zpool/zpool-features.7 claims =

to support the features you have listed.

See =

http://svnweb.freebsd.org/base/releng/8.4/cddl/contrib/opensolaris/cmd/zpoo=
l/zpool-features.7?revision=3D248810&view=3Dmarkup

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