raid - troche przydlugie
Witaj,
W jaki sposob mozna sprawdzic stopien synchroznizacji na dyskach.
Zrobilem sobie instalatorem partycie typu raid. WSzystko
teoretyczeni jest podpiete:
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cat /proc/mdstat
Personalities : [raid1]
read_ahead 1024 sectors
md1 : active raid1 scsi/host0/bus0/target0/lun0/part2[0] scsi/host0/bus0/target1/lun0/part2[1]
4883648 blocks [1/1] [U]
md2 : active raid1 scsi/host0/bus0/target0/lun0/part3[0] scsi/host0/bus0/target1/lun0/part3[1]
8008320 blocks [1/1] [U]
md3 : active raid1 scsi/host0/bus0/target0/lun0/part4[0] scsi/host0/bus0/target1/lun0/part4[1]
1943744 blocks [1/1] [U]
md0 : active raid1 scsi/host0/bus0/target0/lun0/part1[0] scsi/host0/bus0/target1/lun0/part1[1]
2931712 blocks [1/1] [U]
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ALe jak jest jakis odczyt czy zapis to ewidentnie widac i z pracuje
tylko jeden dysk. Jak to mozna sprawdzic czy to sie synchronizuje. W
logach podczas startu mam:
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Aug 14 00:05:59 kernel: md: trying to hot-add scsi/host0/bus0/target1/lun0/part4 to md2 ...
Aug 14 00:05:59 kernel: md: export_rdev(scsi/host0/bus0/target1/lun0/part4)
Aug 14 00:06:02 kernel: md: trying to hot-add scsi/host0/bus0/target1/lun0/part3 to md2 ...
Aug 14 00:06:02 kernel: md: bind<scsi/host0/bus0/target1/lun0/part3,2>
Aug 14 00:06:02 kernel: md: updating md2 RAID superblock on device
Aug 14 00:06:02 kernel: md: scsi/host0/bus0/target1/lun0/part3 [events: 00000086]<6>(write) scsi/host0/bus0/target1/lun0/part3's sb offset: 8008320
Aug 14 00:06:02 kernel: md: scsi/host0/bus0/target0/lun0/part3 [events: 00000086]<6>(write) scsi/host0/bus0/target0/lun0/part3's sb offset: 8008320
Aug 14 00:06:02 kernel: md: recovery thread got woken up ...
Aug 14 00:06:02 kernel: md: recovery thread finished ...
Aug 14 00:11:58 kernel: md: trying to hot-add scsi/host0/bus0/target1/lun0/part1 to md0 ...
Aug 14 00:11:58 kernel: md: bind<scsi/host0/bus0/target1/lun0/part1,2>
Aug 14 00:11:58 kernel: md: updating md0 RAID superblock on device
Aug 14 00:11:58 kernel: md: scsi/host0/bus0/target1/lun0/part1 [events: 00000087]<6>(write) scsi/host0/bus0/target1/lun0/part1's sb offset: 2931712
Aug 14 00:11:58 kernel: md: scsi/host0/bus0/target0/lun0/part1 [events: 00000087]<6>(write) scsi/host0/bus0/target0/lun0/part1's sb offset: 2931712
Aug 14 00:11:58 kernel: md: recovery thread got woken up ...
Aug 14 00:11:58 kernel: md: recovery thread finished ...
Aug 14 00:12:19 kernel: md: trying to hot-add scsi/host0/bus0/target1/lun0/part4 to md3 ...
Aug 14 00:12:19 kernel: md: bind<scsi/host0/bus0/target1/lun0/part4,2>
Aug 14 00:12:19 kernel: md: updating md3 RAID superblock on device
Aug 14 00:12:19 kernel: md: scsi/host0/bus0/target1/lun0/part4 [events: 00000086]<6>(write) scsi/host0/bus0/target1/lun0/part4's sb offset: 1943744
Aug 14 00:12:19 kernel: md: scsi/host0/bus0/target0/lun0/part4 [events: 00000086]<6>(write) scsi/host0/bus0/target0/lun0/part4's sb offset: 1943744
Aug 14 00:12:19 kernel: md: recovery thread got woken up ...
Aug 14 00:12:19 kernel: md: recovery thread finished ...
Aug 14 00:15:44 kernel: md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
Aug 14 00:15:44 kernel: md: raid1 personality registered as nr 3
Aug 14 00:15:44 kernel: md: bind<scsi/host0/bus0/target1/lun0/part1,1>
Aug 14 00:15:44 kernel: md: bind<scsi/host0/bus0/target0/lun0/part1,2>
Aug 14 00:15:44 kernel: md: scsi/host0/bus0/target0/lun0/part1's event counter: 00000088
Aug 14 00:15:44 kernel: md: scsi/host0/bus0/target1/lun0/part1's event counter: 00000088
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Dziwi mnie tylko cos takiego:
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mdadm --detail -t /dev/md3
/dev/md3:
Version : 00.90.00
Creation Time : Wed Jun 21 00:35:07 2006
Raid Level : raid1
Array Size : 1943744 (1.85 GiB 1.99 GB)
Device Size : 1943744 (1.85 GiB 1.99 GB)
Raid Devices : 1
Total Devices : 2
Preferred Minor : 3
Persistence : Superblock is persistent
Update Time : Mon Aug 14 00:15:41 2006
State : active
Active Devices : 1
Working Devices : 2
Failed Devices : 0
Spare Devices : 1
UUID : 67c2d3e0:53470403:66c4ae0e:a62d9606
Events : 0.136
Number Major Minor RaidDevice State
0 8 4 0 active sync /dev/sda4
1 8 20 1 spare /dev/sdb4
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Active Devices powinno byc 2 a jest 1 o co tu chodzi???
Macie moze jakies pomysly? Sorry za lamerie ale w dziedzinei raida
to dopiero zaczynam.
--
Pozdrawiam,
Artur
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