I just created LVM2 builtin RAID1 (something like lvm mirrir, but newer) with lvconvert --type raid1 -m1 /dev/ubuntu/root /dev/sdb5, Ubuntu 12.10.
How can I check mirror status/health both in command-mode and in GUI from non-root?
There are my vgs, pvs, lvs (root-only, needed to open /dev/mapper/control):
# vgs
VG #PV #LV #SN Attr VSize VFree
ubuntu 2 2 0 wz--n- 27.52g 916.00m
# pvs
PV VG Fmt Attr PSize PFree
/dev/sda5 ubuntu lvm2 a-- 13.76g 408.00m
/dev/sdb5 ubuntu lvm2 a-- 13.76g 508.00m
# lvs
LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert
root ubuntu rwi-aom- 13.26G 100.00
swap_1 ubuntu -wi-ao-- 100.00m
# lvs -a
LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert
root ubuntu rwi-aom- 13.26G 100.00
[root_rimage_0] ubuntu iwi-aor- 13.26G
[root_rimage_1] ubuntu iwi-aor- 13.26G
[root_rmeta_0] ubuntu ewi-aor- 4.00m
[root_rmeta_1] ubuntu ewi-aor- 4.00m
swap_1 ubuntu -wi-ao-- 100.00m
My /proc/mdstat is empty:
# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [raid1] [linear] [multipath] [raid0] [raid10]
unused devices: <none>
#
There are files from my /dev/mapper, most are symlinks to dm-*:
control
ubuntu-root -> ../dm-4
ubuntu-root_rimage_0 -> ../dm-1
ubuntu-root_rimage_1 -> ../dm-3
ubuntu-root_rmeta_0 -> ../dm-0
ubuntu-root_rmeta_0 -> ../dm-2
ubuntu-swap_1 -> ../dm-5
There are messages from my dmesg:
md/raid1:mdX: active with 2 out of 2 mirrors
created bitmap (14 pages) for device mdX
mdX: bitmap initialized from disk: read 1 pages, set 42 of 27152 bits
EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: (null)
(Is it normal that some bits are set in bitmap? )
My dmsetup (root only too):
# dmsetup table
ubuntu-root_rimage_1: 0 27803648 linear 8:21 10240
ubuntu-root_rimage_0: 0 27803648 linear 8:5 2048
ubuntu-swap_1: 0 204800 linear 8:5 27805696
ubuntu-root: 0 27803648 raid raid1 3 0 region_size 1024 2 252:0 252:1 252:2 252:3
ubuntu-root_rmeta_1: 0 8192 linear 8:21 2048
ubuntu-root_rmeta_0: 0 8192 linear 8:5 28010496
(is my raid setup correct?)
