ext3 file system becoming read only

Jordi Prats
Tue, 25 Sep 2007 06:28:42 -0000

Hi,
It seems like what it happened to me. I did this to solve this issue:

Mark the filesystem as it does not have a journal (take it to ext2)

tune2fs -O ^has_journal /dev/cciss/c0d0p2

fsck it to delete the journal:

e2fsck /dev/cciss/c0d0p2

Create the journal (take it back to ext3)

tune2fs -j /dev/cciss/c0d0p2

and finaly, remount it.

In my case it was with a local disk, but with your SAN disk should be
the same.

Jordi



Swapana Ghosh wrote:
> Hi
>
> In our office environment few servers mostly  database servers and
yesterday it
> happened
> for one application server(first time) the partion is getting "read
only".
>
> I was checking the archives, found may be similar kind of issues in the
> 2007-July archives.
> But how it has been solved if someone describes me that will be really
helpful.
>
> In our case, just at the problem started found the line in log file as
follows:
>
>      EXT3-fs error (device dm-12): edxt3_find_entry: reading directory
#2015496
> offset 2
>
> Then one blank line
> Then the line is
>
>     Aborting journal on device dm-12.
>     ext3_abort called
>
>     Ext3-fs error (device dm-12): ext3_journal_start_sb: Detected aborted
> journal
>     Remounting filesysem read-only
>
> Then the continuous line as follows:
>
>
>     EXT3-fs error (device dm-12) in start_transaction: Journal has aborted
>
>
>
> The above message is continuous  until we remount the filesystem and
partion
> becomes
> 'read-write'.
>
> We could not figure it out what is the root cause of the system.
>
> We are using individual EMC luns and are configured with LVM volume groups
and
> then mounted on logical
> volumes.
>
> Here i am giving the server description:
>
> ____________________________________________________________
>
> [root at server ~]# lsmod |grep -i qla
> qla2300               130304  0
> qla2xxx_conf          305924  0
> qla2xxx               307448  21 qla2300
> scsi_mod              117709  5 sg,emcp,qla2xxx,cciss,sd_mod
>
> ____________________________________________________________
> [root at server ~]# cat /etc/modprobe.conf
> alias eth0 tg3
> alias eth1 tg3
> alias eth2 e1000
> alias eth3 e1000
> alias eth4 e1000
> alias eth5 e1000
> alias bond0 bonding
> alias scsi_hostadapter cciss
> options bond0 max_bonds=2 miimon=100 mode=1
> alias scsi_hostadapter1 qla2xxx
> alias scsi_hostadapter2 qla2xxx_conf
> #alias scsi_hostadapter3 qla6312
> options qla2xxx  ql2xmaxqdepth=16 qlport_down_retry=64
> ql2xloginretrycount=30 ql2xfailover=0 ql2xlbType=0
> install qla2xxx /sbin/modprobe qla2xxx_conf; /sbin/modprobe
> --ignore-install qla2xxx
> remove qla2xxx /sbin/modprobe -r --first-time --ignore-remove qla2xxx
&& {
> /sbin/modprobe -r --ignore-remove qla2xxx_conf; }
> ###BEGINPP
> include /etc/modprobe.conf.pp
> ###ENDPP
> ###BEGINPP
> include /etc/modprobe.conf.pp
> ###ENDPP
> ###BEGINPP
> include /etc/modprobe.conf.pp
> ###ENDPP
>
> ________________________________________________
> [root at server ~]# rpm -qa |grep -i EMC
> EMCpower.LINUX-4.5.1-022
>
> ________________________________________________
> [root at server ~]# rpm -qa|grep -i scli
> scli-1.06.16-57
>
> ________________________________________________
> [root at server ~]# rpm -qa|grep -i nav
> naviagentcli-6.19.1.3.0-1
>
> ________________________________________________
>  product: QLA2312 Fibre Channel Adapter
>
> ________________________________________________
> [root at server ~]# rpm -qa|grep -i lvm
> lvm2-2.02.06-6.0.RHEL4
> system-config-lvm-1.0.19-1.0
>
> ________________________________________________
>
> If I missed any info, pl. let me know.
>
> It would be really appreciated if I get some hints to solve the issues
>
> Thanks in advance
> -swapana
>
>
>
>
>
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>
>
>


--
......................................................................
         __
        / /          Jordi Prats
  C E / S / C A      Dept. de Sistemes
      /_/            Centre de Supercomputaci? de Catalunya

  Gran Capit?, 2-4 (Edifici Nexus) ? 08034 Barcelona
  T. 93 205 6464 ? F.  93 205 6979 ? jprats at cesca.es
......................................................................