[PVE-User] Proxmox + ZFS: Performance issues

[Ralf]

On 04/26/2016 01:16 AM, Lindsay Mathieson wrote:
> On 26 April 2016 at 08:58, Ralf <ralf+pve at ramses-pyramidenbau.de> wrote:
>
>> zpool get ashift states, that ashift=12. In that case, should it be
>> changed to 9 or is it even possible to change this parameter?
>>
> Good spot that Ralf.
>
> Unfortunately cannot be changed, you'll have to recreate the pool.
Damn. Shouldn't actually proxmox detect the right ashift during
installation?

... Just a guess: Shouldn't it be possible to degrade my raid, create a
new degraded raid1 array having the correct ashift size and sending all
volumes from the old to the new raid?

  Ralf