Date: Mon, 22 Apr 2024 17:18:46 +0200 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 Message-ID: <86bk618lyh.fsf@ltc.des.dev> In-Reply-To: <9a593ca1-4975-438a-afec-d8dd5199dbcf@sentex.net> (mike tancsa's message of "Mon, 22 Apr 2024 10:52:19 -0400") References: <9a593ca1-4975-438a-afec-d8dd5199dbcf@sentex.net>
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mike tancsa <mike@sentex.net> writes: > I upgraded a RELENG_13 box from last March to one today to bring in > some of the zfs bug fixes. But now I have this warning on a pool that > was not there before. But the special devices (two 2TB samsungs) are > 512 according to smartctl? Any idea why this warning popped up on the > pool all of a sudden? the disks and pool have been the same for a > year or so. what does `sysctl vfs.zfs.vdev.min_auto_ashift` say? > Sector Size: 512 bytes logical/physical The SSD is doing read-copy-update behind the scenes to support a 512-byte sector size for compatibility reasons, the real sector size is unlikely to be less than 4 kB and may actually be significantly larger. DES --=20 Dag-Erling Sm=C3=B8rgrav - des@FreeBSD.org
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