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From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@FreeBSD.org>
To: mike tancsa <mike@sentex.net>
Cc: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org>
Subject: Re: block size: 512B configured, 4096B native all of a sudden
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Date: Mon, 22 Apr 2024 17:37:50 +0200
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mike tancsa <mike@sentex.net> writes:
> I guess the next question is how can I fix the issue?  its over 73TB
> and would take quite a long time to zfs send | zre recv.  The HDDs are
> indeed 4K disks.  If I offline the 2 SSD disks that are part of the
> special device one by one and resilver, will it fix it?

No, the ashift is a vdev property.  You'll have to remove one disk from
the pool, create a new pool, send | recv across, then destroy the old
pool and add the remaining disk to the new pool.  Make sure you have a
backup before you start.

DES
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Dag-Erling Sm=C3=B8rgrav - des@FreeBSD.org