[CentOS] File system goes read-only once in a while

[Mufit Eribol]

Kai Schaetzl wrote:
> Mufit Eribol wrote on Thu, 31 Jul 2008 10:08:48 +0300:
>
>   
>> But, file system of "this volume" once in a while 
>> goes "read only" mode.
>>     
>
> there will be log entries about this. Do a *forced* fsck.
>
> Kai
Kai, thank you very much for the hint.

I am not sure which other log file has entries about this problem but 
here is the relevant section of dmesg:

md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
device-mapper: multipath: version 1.0.5 loaded
EXT3 FS on md2, internal journal
kjournald starting.  Commit interval 5 seconds
EXT3 FS on md1, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on md0, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3-fs warning (device dm-0): ext3_clear_journal_err: Filesystem error 
recorded from previous mount: IO failure
EXT3-fs warning (device dm-0): ext3_clear_journal_err: Marking fs in 
need of filesystem check.
EXT3-fs warning: mounting fs with errors, running e2fsck is recommended
EXT3 FS on dm-0, internal journal
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
Adding 6144852k swap on /dev/sda3.  Priority:1 extents:1 across:6144852k
Adding 6144852k swap on /dev/sdb3.  Priority:1 extents:1 across:6144852k

What is the best way to run fsck on a production system?

Thank you
Mufit