13
Continue creating array? y
mdadm: container /dev/md0 prepared.
[root@localhost ~]# mdadm -C /dev/md/R0 /dev/md0 -n 2 -l 0
mdadm: array /dev/md/R0 started.
[root@localhost ~]# cat /proc/mdstat
Personalities : [raid0]
md125 : active raid0 sdc[1] sdd[0]
1953513472 blocks super external:/md0/0 128k chunks
md0 : inactive sdd[1](S) sdc[0](S)
2210 blocks super external:imsm
md126 : active raid0 sda[1] sdb[0]
890817536 blocks super external:/md127/0 128k chunks
md127 : inactive sdb[1](S) sda[0](S)
10402 blocks super external:imsm
unused devices: <none>
[root@localhost ~]# mdadm -D /dev/md125
/dev/md125:
Container : /dev/md0, member 0
Raid Level : raid0
Array Size : 1953513472 (1863.02 GiB 2000.40 GB)
Raid Devices : 2
Total Devices : 2
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Chunk Size : 128K
Consistency Policy : none
UUID : cdba8f2d:aad3144b:8a4c2d03:b16742d0
Number Major Minor RaidDevice State
0 8 48 0 active sync /dev/sdd
1 8 32 1 active sync /dev/sdc
# Use three drives to create a RAID 5 array in container /dev/md0.
[root@localhost ~]# mdadm -C /dev/md0 /dev/sdc /dev/sdd /dev/sde -n 3 -e imsm
mdadm: /dev/sdc appears to contain an ext2fs file system
size=976762584K mtime=Wed Dec 31 19:00:00 1969
mdadm: /dev/sdd appears to contain an ext2fs file system
size=976762584K mtime=Wed Dec 31 19:00:00 1969
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