From: Michael Evans <mjevans1983@gmail.com>
To: linux-raid@vger.kernel.org
Subject: Growing raid 5 to 6; /proc/mdstat reports a strange value?
Date: Sun, 24 Jan 2010 19:49:31 -0800 [thread overview]
Message-ID: <4877c76c1001241949p20089932saae123a1c2871ac0@mail.gmail.com> (raw)
mdX : active raid5 sdd1[8](S) sdb1[7](S) sdf8[0] sdl8[4] sdk2[5]
sdc1[6] sdj6[3] sdi8[1]
Y blocks super 1.1 level 5, 128k chunk, algorithm 2 [6/6] [UUUUUU]
# mdadm --grow /dev/mdX --level=6 --raid-devices=8
--backup-file=/root/mdX.backupfile
mdX : active raid6 sdd1[8] sdb1[7] sdf8[0] sdl8[4] sdk2[5] sdc1[6]
sdj6[3] sdi8[1]
Y blocks super 1.1 level 6, 128k chunk, algorithm 18 [8/9] [UUUUUU_U]
[>....................] reshape = 0.0% (33920/484971520)
finish=952.6min speed=8480K/sec
!!! mdadm 3.1.1 I wanted an 8 device raid-6; Why do you show 9?
What is it showing me now???
blocks super 1.1 level 6, 128k chunk, algorithm 2 [8/10] [UUUUUUUU]
mdadm --detail /dev/mdX
/dev/mdX:
Version : 1.01
Raid Level : raid6
Array Size : 6z ()
Used Dev Size : z ()
Raid Devices : 8
Total Devices : 8
Persistence : Superblock is persistent
Update Time : Sun Jan 24 14:40:32 2010
State : clean
Active Devices : 8
Working Devices : 8
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 128K
Number Major Minor RaidDevice State
0 8 . 0 active sync /dev/sdf
1 8 . 1 active sync /dev/sdi
3 8 . 2 active sync /dev/sdj
6 8 . 3 active sync /dev/sdc
5 8 . 4 active sync /dev/sdk
4 8 . 5 active sync /dev/sdl
8 8 . 6 active sync /dev/sdd
7 8 . 7 active sync /dev/sdb
... Did it actually do what I want but just show me the wrong result
with kernel 2.6.32-gentoo-r2
next reply other threads:[~2010-01-25 3:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-25 3:49 Michael Evans [this message]
2010-01-29 12:23 ` Growing raid 5 to 6; /proc/mdstat reports a strange value? Neil Brown
2010-01-30 7:07 ` Michael Evans
2010-02-10 2:12 ` Neil Brown
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