Re: Unable to replace drive in raidz1

> On Sep 6, 2024, at 18:53, Chris Ross <cross+freebsd@distal.com> wrote:
>> On Sep 6, 2024, at 18:28, Alan Somers <asomers@freebsd.org> wrote:
>> 
>> If it's a 4kn disk, then what you ask for is impossible.  If it's
>> 512e, then it should've already worked.  With diskinfo, a 512e disk
>> will have 512 sectorsize and 4096 stripesize.  A 4kn disk will show
>> 4096 sectorsize.  If you cannot obtain a 512n or 512e disk, then I'm
>> afraid that you'll have to recreate your whole pool.
> 
> Happy to hear other thoughts.  I could move all of the data to
> another system and rebuild it with a new vdev, but I’m not sure
> if I care to grow the FS enough to do that.  :-)

Okay, final question.  If I destroy and rebuild the pool, and have a RAIDz
with 512-byte sector drives, can I replace those with larger 4k sector
drives as long as I have created the vdev with “ashift=12”?

You said “if your pool has a 512B block size”.  Does that mean the ashift
value, or is there something else that I’ll need to be mindful of if
I want to be able to upgrade to 4k disks?

      - Chris