root@RS3617RPxs:~# cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [raidF1]
md3 : active raid10 sde3[8] sdl3[7] sdk3[6] sdj3[5] sdi3[4] sdh3[3] sdg3[2] sdf3[1]
15608786176 blocks super 1.2 64K chunks 2 near-copies [8/8] [UUUUUUUU]
md2 : active raid1 sda3[0] sdb3[1]
971940544 blocks super 1.2 [2/2] [UU]
md1 : active raid1 sda2[0] sdb2[9] sde2[1] sdf2[2] sdg2[3] sdh2[4] sdi2[5] sdj2[6] sdk2[7] sdl2[8]
2097088 blocks [12/10] [UUUUUUUUUU__]
md0 : active raid1 sda1[7] sdb1[9] sde1[0] sdf1[2] sdg1[6] sdh1[4] sdi1[1] sdj1[8] sdk1[3] sdl1[5]
2490176 blocks [12/10] [UUUUUUUUUU__]
unused devices: <none>
root@RS3617RPxs:~#
我已将相同的驱动器作为 sde、sdg 和 sdi 放入插槽 5、7 和 9。我希望插槽 5 可以镜像插槽 6 等，以避免同一批被镜像。
但是它没有显示 raid 1 上的嵌套 raid 0，而我预计 raid 10 会有嵌套 raid 0。
/dev/md3:
Version : 1.2
Creation Time : Thu Jul 20 12:22:40 2017
Raid Level : raid10
Array Size : 15608786176 (14885.70 GiB 15983.40 GB)
Used Dev Size : 3902196544 (3721.42 GiB 3995.85 GB)
Raid Devices : 8
Total Devices : 8
Persistence : Superblock is persistent
Update Time : Tue Jul 25 15:13:37 2017
State : clean
Active Devices : 8
Working Devices : 8
Failed Devices : 0
Spare Devices : 0
Layout : near=2
Chunk Size : 64K
Name : RS3617RPxs:3 (local to host RS3617RPxs)
UUID : 2d64bc68:f05d7040:c6cf8498:6d1dfa73
Events : 44318
Number Major Minor RaidDevice State
8 8 67 0 active sync set-A /dev/sde3
1 8 83 1 active sync set-B /dev/sdf3
2 8 99 2 active sync set-A /dev/sdg3
3 8 115 3 active sync set-B /dev/sdh3
4 8 131 4 active sync set-A /dev/sdi3
5 8 147 5 active sync set-B /dev/sdj3
6 8 163 6 active sync set-A /dev/sdk3
7 8 179 7 active sync set-B /dev/sdl3