[Linux-cluster] error messages while use fsck.gfs2

[Polo InitX]

I have no idea with fsck.gfs2 to check the storage.
Any other advice?

On Fri, Nov 11, 2011 at 5:17 PM, Steven Whitehouse <swhiteho at redhat.com>wrote:

> Hi,
>
> On Fri, 2011-11-11 at 17:04 +0800, Sherlock Zhang wrote:
> > Hi Bob
> >     Thank you for your advice,
> > I had dump the FS head.
> > #dd if=/dev/sdc of=/home/disk.dump bs=4096 count=1000
> > #file disk.dump
> > disk.dump: Linux GFS2 Filesystem (blocksize 4096, lockproto
> > fsck_nolock)
> > and I also try
> > # gfs2_tool sb /dev/sdc all
> >   mh_magic = 0x01161970
> >   mh_type = 1
> >   mh_format = 100
> >   sb_fs_format = 1801
> >   sb_multihost_format = 1900
> >   sb_bsize = 4096
> >   sb_bsize_shift = 12
> >   no_formal_ino = 2
> >   no_addr = 35
> >   no_formal_ino = 1
> >   no_addr = 34
> >   sb_lockproto = fsck_nolock
> >   sb_locktable =
> >   uuid = 5a8234ba-ad89-f87a-c98b-807e307085fe
> >
> >
> > then try to mount the storage
> > #mount.gfs2 -o  lockproto=fsck_nolock /dev/sdc /opt
> > error mounting /dev/sdc on /opt: No such file or directory
> >
> >
> > #dmesg
> > GFS2: can't find protocol fsck_nolock
> >
> >
> > Is this mean the filesystem structure still ok?
> > why should dmesg will report can't find fsck_nolock protocol?
> > Did I miss something?
> >
> >
> > Thank you
> >
> This means that fsck has stopped before it finished for some reason. It
> replaces the lock protocol with fsck_nolock while it is running so that
> if this happens you cannot remount the filesystem which is potentially
> damaged. If fsck is not completing correctly then we need to look into
> why that is,
>
> Steve.
>
> > On Thu, Nov 10, 2011 at 10:45 PM, Bob Peterson <rpeterso at redhat.com>
> > wrote:
> >         ----- Original Message -----
> >         | Hi
> >         |     The host use UIT's CT1600 and UIT's 2000E IP-SAN storage
> >         (single
> >         |     LUN
> >         | 10TB)
> >         | last time the switch got a  power failure during the data
> >         backup (the
> >         | iSCSI
> >         | connection is lost)
> >         | after the iSCSI reconneted, the filesystem was unable to
> >         use.
> >         |
> >         | So I try  use fsck.gfs2 to fix the filesystem problem.but
> >         there is a
> >         | error
> >         | message and I got no idea with this error.
> >         |
> >         | [root at Toureg ~]# fsck.gfs2 /dev/sdc
> >         | Initializing fsck
> >         | The system master directory seems to be destroyed.
> >         | Okay to rebuild it? (y/n)y
> >         | Trying to rebuild the master directory.
> >         | libgfs2.h: out of space
> >
> >
> >         Hi,
> >
> >         The only time I've seen this error before is when the device
> >         was badly damaged. I don't know how that one was damaged, but
> >         it looked like the RAID controller had completely rearranged
> >         the blocks on the media.
> >
> >         If you are a Red Hat customer, please call the Red Hat support
> >         number and ask for help.
> >
> >         A number of things can cause this message:
> >         1. Scrambled blocks on media
> >         2. A disk failed
> >         3. Running fsck on the wrong device. For example, if /dev/sdc
> >           is partitioned (should have specified /dev/sdc1?) or if
> >           /dev/sdc is supposed to be part of an LVM2 logical volume,
> >           (should you have specified /dev/volgrp/logvol (for example)
> >           rather than /dev/sdc?
> >
> >         Either way, something's seriously wrong with it. If it were my
> >         device, I'd dump the first few MB to a file and see what's
> >         there,
> >         compared to what should be there.
> >
> >         Regards,
> >
> >         Bob Peterson
> >         Red Hat File Systems
> >
> >         --
> >         Linux-cluster mailing list
> >         Linux-cluster at redhat.com
> >         https://www.redhat.com/mailman/listinfo/linux-cluster
> >
> >
> >
> >
> > --
> >  Thank you
> >
> > Best regards
> >
> *************************************************************************************************
> > Sherlock Zhang  张 国荣
> > Technical Supporter East China Technical Support Department
> >
> > Address: Room 23E No. 728 West Yanan Road Changning DC. Shanghai China
> > Post code: 20050
> >
> > Office: +86 021 62253300 ext. 803
> > Mobile: +86 133 8600 6305
> > www.uit.com.cn
> >
> >
> >
> *************************************************************************************************
> >
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>
>
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-- 
        致
 礼～！

*************************************************************************************************
Sherlock Zhang  张 国荣
Technical Supporter East China Technical Support Department


Office: +86 021 62253300 ext. 803
Mobile: +86 133 8600 6305
www.uit.com.cn


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