HEADS UP: ZFS v28 merged to 8-STABLE
C. P. Ghost
cpghost at cordula.ws
Wed Jun 8 22:59:41 UTC 2011
On Thu, Jun 9, 2011 at 12:55 AM, Marius Strobl
<marius at alchemy.franken.de> wrote:
> On Thu, Jun 09, 2011 at 12:46:19AM +0200, C. P. Ghost wrote:
>> On Wed, Jun 8, 2011 at 11:12 PM, Marius Strobl
>> <marius at alchemy.franken.de> wrote:
>> > On Mon, Jun 06, 2011 at 12:53:11PM +0200, Martin Matuska wrote:
>> >> Hi,
>> >> I have merged ZFS version 28 to 8-STABLE (revision 222741)
>> >> New major features:
>> >> - data deduplication
>> >> - triple parity RAIDZ (RAIDZ3)
>> >> - zfs diff
>> >> - zpool split
>> >> - snapshot holds
>> >> - zpool import -F. Allows to rewind corrupted pool to earlier
>> >> ? transaction group
>> >> - possibility to import pool in read-only mode
>> >> For updating, there is a compatibility layer so that in the update phase
>> >> most functionality of the new zfs binaries can be used with the old
>> >> kernel module and old zfs binaries with the new kernel module.
>> > Beware that the compatibility layer is known broken on big-endian
>> > architectures, i.e. powerpc64 and sparc64.
>> Thanks for the heads-up! I was just about to update a couple of sparc64
>> machines here. Fortunately, the only ZFS file systems there are external
>> file systems (no /, /usr, /var etc...), so it's gonna be painless, I suppose.
>> But what about other layouts? Does it mean that an installkernel, reboot,
>> and installworld won't work?
> No, using the old zfs binaries with the new kernel module triggers the
> problem. Using the new zfs binaries with the new kernel module works
> (at least with CURRENT) so you'd need disregard everything that is
> documented and do what is not guaranteed to work but usually also does,
> i.e. do installkernel, installworld and then reboot.
Ah, yes, that's what I expected. Thank you!
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