Dear Dave, thank you for your response. Here is my output: $ sudo lvs -o segtype cryptdata_raid5/home Type linear linear linear And if I execute: "$ sudo lvconvert --type raid5 -i 3 cryptdata_raid5/home" I get Using default stripesize 64,00 KiB. Replaced LV type raid5 (same as raid5_ls) with possible type raid1.Repeat this command to convert to raid5 after an interim conversion has finished. Are you sure you want to convert linear LV cryptdata_raid5/home to raid1 type? [y/n]: y
Insufficient free space: 1 extents needed, but only 0 available So probably I hit a bug with lvm2-2.03.12 on arch linux. Thanks for your help. Then it will be better to reformat my RAID5 with mdadm. Am 29.07.21 um 16:59 schrieb David Teigland:
On Wed, Jul 28, 2021 at 11:50:56PM +0200, Martin Dünkelmann wrote:Dear LVM2-People, I made a native RAID5 via LVM on 3 SSDs without mdadm, since LVM2 can do it natively. But I got confused about how to easily monitor it (send emails about errors, since it's a remove server) and how to check, repair and scrub the RAID5. Using: "sudo lvchange --syncaction check cryptdata_raid5/home" (same for repair) results in Command on LV cryptdata_raid5/home does not accept LV type linear. Command not permitted on LV cryptdata_raid5/home.It works for me, so it could be a fixed bug. Check that the LV is really raid5: lvs -o segtype cryptdata_raid5/homeDoes that mean LVM2 doesn't fully support native RAID5 and I should format everything and set up a mdadm raid5? Because mdadm has scrubbing and email reports according to the mdadm.conf.Right, mdadm does much more. Dave
-- Greetings Martin
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