[Lustre-discuss] My OST is fault...

Warp Tseng warp.tseng at gmail.com
Mon Oct 25 11:07:26 PDT 2010


Dear Everyone,

When I run e2fsck to check my OST, I had already umount the OST.
I finish the e2fsck and try to remount the OST, I got the error...
(My e2fsck is e2fsprogs-1.41.10.sun2-0suse. And Kernel is
2.6.16.60-0.42.8_lustre.1.8.3-smp.)

=== Error 1 ===
oss1:~ # mount -t lustre /dev/sdd1 /mnt/wk2-ost1
mount.lustre: mount /dev/sdd1 at /mnt/wk2-ost1 failed: Invalid argument
This may have multiple causes.
Are the mount options correct?
Check the syslog for more info.
=== Error 1 ===

So I try to rerun e2fsck, I got this error...

=== Error 2 ===
oss1:~ # e2fsck /dev/sdd1
e2fsck 1.41.10.sun2 (24-Feb-2010)
e2fsck: MMP: fsck being run while trying to open /dev/sdd1

The superblock could not be read or does not describe a correct ext2
filesystem.  If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
    e2fsck -b 32768 <device>
=== Error 2 ===

I don't know why it happened?

I also use the command "tune2fs -l /dev/sdd1"

=== Meeage ===
tune2fs 1.41.10.sun2 (24-Feb-2010)
Filesystem volume name:   wk2-OSTffff
Last mounted on:          <not available>
Filesystem UUID:          037f47e2-03f9-4c0b-bdae-378796dda010
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      has_journal ext_attr resize_inode dir_index
filetype extent mmp sparse_super large_file uninit_bg
Filesystem flags:         signed_directory_hash
Default mount options:    (none)
Filesystem state:         not clean with errors
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              366256128
Block count:              1464996985
Reserved block count:     73249849
Free blocks:              1441891602
Free inodes:              366256117
First block:              0
Block size:               4096
Fragment size:            4096
Reserved GDT blocks:      674
Blocks per group:         32768
Fragments per group:      32768
Inodes per group:         8192
Inode blocks per group:   512
Filesystem created:       Tue Aug 24 09:30:26 2010
Last mount time:          n/a
Last write time:          Tue Oct 26 02:02:08 2010
Mount count:              0
Maximum mount count:      26
Last checked:             Tue Aug 24 09:30:26 2010
Check interval:           15552000 (6 months)
Next check after:         Sun Feb 20 09:30:26 2011
Lifetime writes:          88 GB
Reserved blocks uid:      0 (user root)
Reserved blocks gid:      0 (group root)
First inode:              11
Inode size:              256
Required extra isize:     28
Desired extra isize:      28
Journal inode:            8
Default directory hash:   half_md4
Directory Hash Seed:      a2f5302f-6975-4b71-81c4-a64514f7fa23
Journal backup:           inode blocks
MMP block number:         1545
MMP update interval:      1
=== Message ===

Can you help me and give me suggestion?

P.S. Maybe it's important...

=== Error 3 ===
LDISKFS-fs: group descriptors corrupted !
LustreError: 8678:0:(obd_mount.c:1290:server_kernel_mount()) premount
/dev/sdd1:0x0 ldiskfs failed: -22, ldiskfs2 failed: -19.  Is the ldiskfs
module available?
LustreError: 8678:0:(obd_mount.c:1616:server_fill_super()) Unable to mount
device /dev/sdd1: -22
LustreError: 8678:0:(obd_mount.c:2045:lustre_fill_super()) Unable to mount
(-22)
=== Error 3 ===

Best Regards,

--
Warp Tseng
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