Re: [developer] RAIDZ Expansion Feature

[Matthew Ahrens via openzfs-developer]

That's right - RAIDZ (and mirroring) only use the space of the smallest
disk in the group, so they should normally be all the same size.  As with
other uses of `zpool attach` (to mirrors), the new drive needs to be no
smaller than the existing disks.

--matt

On Wed, Nov 8, 2023 at 4:09 PM Anthony D'Atri 
wrote:

> Nice.  Is it the case that added drives must be the same -- or no smaller
> than -- existing drives in the RAID-Z group?  The documentarian in me would
> call that out explicitly.
>
> On Nov 8, 2023, at 19:01, Don Brady  wrote:
>
> I'm happy to announce that the long-awaited *RAIDZ Expansion* feature has
> officially landed in the OpenZFS master branch. This feature will need some
> soak time, but will be available in the OpenZFS 2.3 release, which is
> probably about a year out.
>
> A huge thanks and shout out to Matt Ahrens for the design, implementation,
> and ongoing consultations. Also many thanks to the sponsors, The FreeBSD
> Foundation, iXsystems, Inc., and vStack.
>
> Thanks to our OpenZFS community members for code contributions, testing
> and feedback.  Including:
> Fedor Uporov, Stuart Maybee, Thorsten Behrens, Fmstrat, Mark Maybee, Brian
> Behlendorf, and others.
>
> Cheers,
>   Don Brady
>
> https://github.com/openzfs/zfs/commit/5caeef02fa531
>
>
> *openzfs * / openzfs-developer / see
> discussions  + participants
>  + delivery options
>  Permalink
> 
>

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Re: [developer] RAIDZ Expansion Feature

[Anthony D'Atri]

Nice.  Is it the case that added drives must be the same -- or no smaller than 
-- existing drives in the RAID-Z group?  The documentarian in me would call 
that out explicitly.

> On Nov 8, 2023, at 19:01, Don Brady  wrote:
> 
> I'm happy to announce that the long-awaited RAIDZ Expansion feature has 
> officially landed in the OpenZFS master branch. This feature will need some 
> soak time, but will be available in the OpenZFS 2.3 release, which is 
> probably about a year out.
>  
> A huge thanks and shout out to Matt Ahrens for the design, implementation, 
> and ongoing consultations. Also many thanks to the sponsors, The FreeBSD 
> Foundation, iXsystems, Inc., and vStack.
>  
> Thanks to our OpenZFS community members for code contributions, testing and 
> feedback.  Including:
> Fedor Uporov, Stuart Maybee, Thorsten Behrens, Fmstrat, Mark Maybee, Brian 
> Behlendorf, and others.
>  
> Cheers,
>   Don Brady
>  
> https://github.com/openzfs/zfs/commit/5caeef02fa531
> 
> openzfs  / openzfs-developer / see 
> discussions  + participants 
>  + delivery options 
> Permalink 
> 

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[developer] RAIDZ Expansion Feature

[Don Brady]

I'm
happy to announce that the long-awaited *RAIDZ Expansion* feature has officially
landed in the OpenZFS master branch. This feature will need some soak time, but
will be available in the OpenZFS 2.3 release, which is probably about a year
out.


 


A huge
thanks and shout out to Matt Ahrens for the design, implementation, and ongoing
consultations. Also many thanks to the sponsors, The FreeBSD Foundation,
iXsystems, Inc., and vStack.


 


Thanks
to our OpenZFS community members for code contributions, testing and
feedback.  Including:


Fedor
Uporov, Stuart Maybee, Thorsten Behrens, Fmstrat, Mark Maybee, Brian
Behlendorf, and others.


 


Cheers,


 
Don Brady


 


https://github.com/openzfs/zfs/commit/5caeef02fa531



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