[kwlug-disc] Docker Host Appliance

[Doug Moen]

ZFS has a limitation where you can not add disks to a RAIDz vdev. Work to fix this began in 2017. A bunch of web pages claim that the work was completed last year. However, the pull request is still open:
    https://github.com/openzfs/zfs/pull/12225

The code is feature complete and the remaining work seems to involve testing. If you read the comments, a number of people are using it experimentally and have written tooling for the new feature. But it's not released yet.
A comment from last week says
    we on the iX side are taking a serious look at this right now to determine when to incorporate it into TrueNAS SCALE.

On Sun, Jan 15, 2023, at 8:09 PM, John Sellens wrote:
> Hi Chris, thanks very much for your storage build details.
>
> I'm a big fan of both ZFS and TrueNAS (though I haven't used Scale yet).
>
> I'm interested in what ZFS drawbacks you're finding - it has served me
> well for many years.
>
> Thanks again, cheers
>
> John
>
>
> On Sun, 2023/01/15 05:51:39PM -0500, Chris Irwin via kwlug-disc 
> <kwlug-disc at kwlug.org> wrote:
> | TrueNAS's best feature is the reliable web interface, which was why I
> | finally settled on it. In retrospect, I wish I had done a bit more 
> research
> | before settling. ZFS, while generally positive, has some drawbacks I
> | wouldn't have assumed existed.
>
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