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Fri, 19 Sep 2025 04:25:41 -0700 (PDT) Message-ID: Date: Fri, 19 Sep 2025 13:25:41 +0200 Precedence: bulk X-Mailing-List: linux-lvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: =?UTF-8?Q?Re=3A_LVM_RAID1_thin-pool_shows_=E2=80=9Calignment_incons?= =?UTF-8?Q?istency=E2=80=9D_warnings?= To: Alessandro Brega , linux-lvm@lists.linux.dev References: Content-Language: en-US, cs From: Zdenek Kabelac In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Dne 18. 09. 25 v 21:07 Alessandro Brega napsal(a): > Hello everyone, > > on a new debian trixie server (kernel 6.12.43-1, lvm2 2.03.31-2) I’m > trying to set up an LVM RAID-1 thin-pool with these commands: > > pvcreate /dev/nvme0n1p5 > pvcreate /dev/nvme1n1p5 > vgcreate nvme /dev/nvme0n1p5 /dev/nvme1n1p5 > lvcreate --type raid1 --mirrors 1 --name thin_raid1_data --size 100G nvme > lvcreate --type raid1 --mirrors 1 --name thin_raid1_metadata --size 100MiB nvme > lvconvert --yes --thin-pool nvme/thin_raid1_data --poolmetadata > nvme/thin_raid1_metadata > lvrename nvme/thin_raid1_data nvme/thin_raid1 > > The thin pool is created successfully and works as expected, but the > kernel logs warnings such as: > > device-mapper: table: 253:4: adding target device (start sect 0 len > 209715200) caused an alignment inconsistency Hi Recently solved in kernel - see this patch: "dm-raid: don't set io_min and io_opt for raid1" https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux.git/+/a86556264696b797d94238d99d8284d0d34ed960 Regards Zdenek