adding another disk to an existing vdev
Freddie Cash
fjwcash at gmail.com
Sun Mar 7 17:49:53 UTC 2021
On Sun., Mar. 7, 2021, 9:25 a.m. tech-lists, <tech-lists at zyxst.net> wrote:
> Hi,
>
> Say there are 4 identical disks in total. Three of them are in an
> already-existing raidz1-0 vdev.
>
> Can I add this fourth disk to the vdev? Will it still be a raidz1-0
> vdev?
>
> Will I need to eg resilver/scrub/anything else ?
>
> There are some answers for this question being "no" but these are from a
> decade ago. Is it possible now?
>
> Context is recent stable/12. The context can be changed if required.
>
No, you cannot extend a raidz vdev by adding disks to it. The number of
drives in a raidz vdev is fixed at creation time.
Cheers,
Freddie
Typos due to smartphone keyboard.
>
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