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Pasted as Plain Text by rain ( 13 years ago )
root@mws64:~# lvcreate -L1G -nraid1-1 mws64system
Logical volume "raid1-1" created
root@mws64:~# lvcreate -L1G -nraid1-2 mws64system
Logical volume "raid1-2" created
root@mws64:~# mdadm -C -l10 -p f2 -n2 /dev/md0 /dev/mws64system/raid1-1 /dev/mws64system/raid1-2
mdadm: /dev/mws64system/raid1-1 appears to be part of a raid array:
level=raid10 devices=2 ctime=Mon Jan 17 19:43:08 2011
mdadm: /dev/mws64system/raid1-2 appears to be part of a raid array:
level=raid10 devices=2 ctime=Mon Jan 17 19:43:08 2011
Continue creating array? y
mdadm: Defaulting to version 1.2 metadata
mdadm: array /dev/md0 started.
root@mws64:~# cat /proc/mdstat
Personalities : [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md0 : active (auto-read-only) raid10 dm-18[1] dm-17[0]
1047552 blocks super 1.2 512K chunks 2 far-copies [2/2] [UU]
resync=PENDING
unused devices: <none>
root@mws64:~# mkfs.xfs /dev/md0
log stripe unit (524288 bytes) is too large (maximum is 256KiB)
log stripe unit adjusted to 32KiB
meta-data=/dev/md0 isize=256 agcount=8, agsize=32640 blks
= sectsz=512 attr=2, projid32bit=0
data = bsize=4096 blocks=261120, imaxpct=25
= sunit=128 swidth=256 blks
naming =version 2 bsize=4096 ascii-ci=0
log =internal log bsize=4096 blocks=1200, version=2
= sectsz=512 sunit=8 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
root@mws64:~# cat /proc/mdstat
Personalities : [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md0 : active raid10 dm-18[1] dm-17[0]
1047552 blocks super 1.2 512K chunks 2 far-copies [2/2] [UU]
[=>...................] resync = 6.2% (65536/1047552) finish=0.9min speed=16384K/sec
unused devices: <none>
root@mws64:~# cat /proc/mdstat
Personalities : [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md0 : active raid10 dm-18[1] dm-17[0]
1047552 blocks super 1.2 512K chunks 2 far-copies [2/2] [UU]
unused devices: <none>
root@mws64:~# mdadm -D /dev/md0
/dev/md0:
Version : 1.2
Creation Time : Mon Jan 17 19:48:40 2011
Raid Level : raid10
Array Size : 1047552 (1023.17 MiB 1072.69 MB)
Used Dev Size : 1047552 (1023.17 MiB 1072.69 MB)
Raid Devices : 2
Total Devices : 2
Persistence : Superblock is persistent
Update Time : Mon Jan 17 19:49:58 2011
State : active
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Layout : far=2
Chunk Size : 512K
Name : mws64:0 (local to host mws64)
UUID : fc9849b5:b128337f:927d3b87:3fc53fa9
Events : 35
Number Major Minor RaidDevice State
0 254 17 0 active sync /dev/dm-17
1 254 18 1 active sync /dev/dm-18
root@mws64:~# mkdir /tmp/1
root@mws64:~# mount /dev/md0 /tmp/1
root@mws64:~# dd if=/dev/zero of=/tmp/1/file bs=1M count=500
500+0 записей считано
500+0 записей написано
скопировано 524288000 байт (524 MB), 1,56792 c, 334 MB/c
root@mws64:~# sync ; md5sum /tmp/1/file
d8b61b2c0025919d5321461045c8226f /tmp/1/file
root@mws64:~# mdadm /dev/md0 -f /dev/mws64system/raid1-1
mdadm: set /dev/mws64system/raid1-1 faulty in /dev/md0
root@mws64:~# cat /proc/mdstat
Personalities : [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md0 : active raid10 dm-18[1] dm-17[0](F)
1047552 blocks super 1.2 512K chunks 2 far-copies [2/1] [_U]
unused devices: <none>
root@mws64:~# mdadm -D /dev/md0
/dev/md0:
Version : 1.2
Creation Time : Mon Jan 17 19:48:40 2011
Raid Level : raid10
Array Size : 1047552 (1023.17 MiB 1072.69 MB)
Used Dev Size : 1047552 (1023.17 MiB 1072.69 MB)
Raid Devices : 2
Total Devices : 2
Persistence : Superblock is persistent
Update Time : Mon Jan 17 19:52:56 2011
State : clean, degraded
Active Devices : 1
Working Devices : 1
Failed Devices : 1
Spare Devices : 0
Layout : far=2
Chunk Size : 512K
Name : mws64:0 (local to host mws64)
UUID : fc9849b5:b128337f:927d3b87:3fc53fa9
Events : 38
Number Major Minor RaidDevice State
0 0 0 0 removed
1 254 18 1 active sync /dev/dm-18
0 254 17 - faulty spare /dev/dm-17
root@mws64:~# md5sum /tmp/1/file
d8b61b2c0025919d5321461045c8226f /tmp/1/file
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