salut
am un array raid5 din doua hdd-uri momentan, acuma
am si device-ul cu numarul 3 si doresc sa-l adaug in array
si sa-i cresc dimensiunea array-ului
configuratie este:
mdadm - v2.6.4 - 19th October 2007
Linux crystal 2.6.13-15.18-default #1 Tue Oct 2 17:36:20 UTC 2007 i686 i686
i386 GNU/Linux
/etc/raidtab arata asa:
raiddev /dev/md0
raid-level 5
nr-raid-disks 3
nr-spare-disks 0
persistent-superblock 1
parity-algorithm left-symmetric
chunk-size 32
device /dev/sdb1
raid-disk 0
device /dev/hdc1
raid-disk 1
device /dev/sda1
raid-disk 2
# cat /proc/mdstat
Personalities : [raid5]
md0 : active raid5 sda1[2] hdc1[1] sdb1[0]
488383936 blocks level 5, 32k chunk, algorithm 2 [2/2] [UU]
unused devices: <none>
am folosit urmatoarele comenzi pt adaugarea noului hdd:
# mdadm --manage /dev/md0 --add /dev/sda1
am verificat:
# mdadm -D /dev/md0
/dev/md0:
Version : 00.90.02
Creation Time : Fri Jan 18 13:27:05 2008
Raid Level : raid5
Array Size : 488383936 (465.76 GiB 500.11 GB)
Used Dev Size : 488383936 (465.76 GiB 500.11 GB)
Raid Devices : 2
Total Devices : 3
Preferred Minor : 0
Persistence : Superblock is persistent
Update Time : Fri Jan 18 18:14:34 2008
State : clean
Active Devices : 2
Working Devices : 3
Failed Devices : 0
Spare Devices : 1
Layout : left-symmetric
Chunk Size : 32K
UUID : 702071ec:86c17f32:27cec32f:6ad1e47b
Events : 0.171759
Number Major Minor RaidDevice State
0 8 17 0 active sync /dev/sdb1
1 22 1 1 active sync /dev/hdc1
2 8 1 - spare /dev/sda1
# mdadm --grow /dev/md0 --raid-devices=3
mdadm: Need to backup 64K of critical section..
mdadm: /dev/md0: Cannot get array details from sysfs
aveti idee de ce imi da eroarea respectiva cu sysfs ?
am googleuit si intr-un post am vazut ca ar trebui sa am kernel 2.6.17,
pentru a putea creste dimensiunea arrayului...?
any ideea ?
10x
--
Dan
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