In the past, I expanded/reshaped raid-6 arrays multiple times with mdadm. Today I've added 2 disks to new raid-6 array, and was not able to reshape it.
It was different this time: now with journal and under WSL2 / Ubuntu. Is there a workaround or I am missing something?
root@DESKTOP:~# mdadm -v --grow --raid-devices=7 /dev/md0 mdadm: Cannot set device shape for /dev/md0: Invalid argument Array details:
root@DESKTOP:~# mdadm --detail /dev/md0 /dev/md0: Version : 1.2 Creation Time : Thu Nov 3 01:14:38 2022 Raid Level : raid6 Array Size : 5860144128 (5588.67 GiB 6000.79 GB) Used Dev Size : 1953381376 (1862.89 GiB 2000.26 GB) Raid Devices : 5 Total Devices : 8 Persistence : Superblock is persistent Update Time : Fri Nov 4 02:26:35 2022 State : clean Active Devices : 5 Working Devices : 8 Failed Devices : 0 Spare Devices : 2 Layout : left-symmetric Chunk Size : 512K Consistency Policy : journal Name : DESKTOP:0 (local to host DESKTOP) UUID : 21b70607:7ca3faf8:af74d21e:caa06133 Events : 26489 Number Major Minor RaidDevice State 0 8 17 0 active sync /dev/sdb1 1 8 33 1 active sync /dev/sdc1 2 8 49 2 active sync /dev/sdd1 3 8 65 3 active sync /dev/sde1 4 8 81 4 active sync /dev/sdf1 5 7 1 - journal /dev/loop1 6 8 129 - spare /dev/sdi1 7 8 113 - spare /dev/sdh1 root@DESKTOP:~# uname -a Linux DESKTOP 5.10.16.3-microsoft-standard-WSL2 #1 SMP Fri Apr 2 22:23:49 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
mdadm - v4.1 - 2018-10-01
