Hi,
Am 11.04.24 um 04:25 schrieb Li Nan:
Hi,
在 2024/4/11 4:59, Sven Köhler 写道:
Hi,
Am 10.04.24 um 03:56 schrieb Li Nan:
Hi, Köhler
在 2024/4/9 7:31, Sven Köhler 写道:
[...]
I should have mentioned the mdadm and kernel version. I am using
mdadm 4.3-2 and linux-lts 6.6.23-1 on Arch Linux.
I created the array very similar to what you did:
mdadm --create /dev/md4 --level=6 --raid-devices=4 --metadata=0.90
/dev/sd[abcd]4
My mdadm.conf looks like this:
DEVICE partitions
ARRAY /dev/md/4 metadata=0.90 UUID=...
And /proc/partitions looks like this:
major minor #blocks name
8 0 2930266584 sda
8 1 1048576 sda1
8 2 33554432 sda2
8 3 10485760 sda3
8 4 2885176775 sda4
8 16 2930266584 sdb
8 17 1048576 sdb1
8 18 33554432 sdb2
8 19 10485760 sdb3
8 20 2885176775 sdb4
8 32 2930266584 sdc
8 33 1048576 sdc1
8 34 33554432 sdc2
8 35 10485760 sdc3
8 36 2885176775 sdc4
8 48 2930266584 sdd
8 49 1048576 sdd1
8 50 33554432 sdd2
8 51 10485760 sdd3
8 52 2885176775 sdd4
Interestingly, sda, sdb, etc. are included. So "DEVICE partitions"
actually considers them.
I used your command and config, updated kernel and mdadm, but raid also
created correctly after reboot.
My OS is fedora, it may have been affected by some other system tools? I
have no idea.
The Arch kernel has RAID autodetection enabled. I just tried to
reproduce it. While mdadm will not consider /dev/sd[ab] as members, the
kernel's autodetection will. For that you have to reboot.
I used this ISO in a VM with 2 harddisks to reproduce the issue:
https://mirror.informatik.tu-freiberg.de/arch/iso/2024.04.01/archlinux-2024.04.01-x86_64.iso
Kind Regards,
Sven
