[root@in-rady-neuro9 ~]# df -kl /myarray
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/md2 11537161976 162432 10950945196 1% /myarray
Should be 7TB of used space.
[root@in-rady-neuro9 ~]# cat /proc/partitions
major minor #blocks name
8 0 438960128 sda
8 1 512000 sda1
8 2 51200000 sda2
8 3 387247104 sda3
8 16 1953514584 sdb
8 32 1953514584 sdc
8 48 1953514584 sdd
8 64 1953514584 sde
8 80 1953514584 sdf
8 96 1953514584 sdg
8 112 1953514584 sdh
8 128 1953514584 sdi
253 0 346226688 dm-0
253 1 40992768 dm-1
sd[b-i] are raid devices
[root@in-rady-neuro9 ~]# mdadm --detail /dev/md2
/dev/md2:
Version : 0.90
Creation Time : Fri Dec 16 17:56:14 2011
Raid Level : raid6
Array Size : 11721086976 (11178.10 GiB 12002.39 GB)
Used Dev Size : 1953514496 (1863.02 GiB 2000.40 GB) <<<====== Wrong! Should be 7TB of used array space.
Raid Devices : 8
Total Devices : 8
Preferred Minor : 2
Persistence : Superblock is persistent
Update Time : Tue Mar 27 14:58:01 2012
State : clean
Active Devices : 8
Working Devices : 8
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 64K
UUID : 4fcdcafa:fea0c196:4d5dd1d0:da2b21e5
Events : 0.220864
Number Major Minor RaidDevice State
0 8 16 0 active sync /dev/sdb
1 8 32 1 active sync /dev/sdc
2 8 48 2 active sync /dev/sdd
3 8 64 3 active sync /dev/sde
4 8 80 4 active sync /dev/sdf
5 8 96 5 active sync /dev/sdg
6 8 112 6 active sync /dev/sdh
7 8 128 7 active sync /dev/sdi
[root@in-rady-neuro9 ~]#
________________________________________
From: NeilBrown [neilb@xxxxxxx]
Sent: Wednesday, March 28, 2012 12:11 AM
To: Paramasivam, Meenakshisundaram
Cc: linux-raid@xxxxxxxxxxxxxxx
Subject: Re: mdadm raid6 recovery status
On Wed, 28 Mar 2012 02:22:33 +0000 "Paramasivam, Meenakshisundaram"
<mparamas@xxxxxxxxx> wrote:
> #mount /dev/md2 /myarray
> mounts fine, however, I now see only 2TB instead of 7 TB for /myarray. I need to get all of the data back and I am stuck here.
What exactly do you mean by "see only 2TB"??
The md array is reporting that it is 12TB in size (12000 GB).
What reports 2TB? /proc/partitions? df? du? ?/
NeilBrown
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