how to prevent filesystem check

[Pengcheng Zou]

use 'noload' option to mount the readonly ext3 filesystem on the slave
host, so the journal will not be loaded.

BTW, this kind of setting could have some cache-coherence problem. why
not do it correct way by using some kind of network filesystem (NFS)
or clustering filesystem (GFS,Lustre)?

On 11/28/06, Sebastian Reitenbach <itlistuser at rapideye.de> wrote:
> Hi all,
>
> I want to setup a RAID storage system, where i have two systems connected to
> it. the filesystems are mapped out to both connectors. I want the master host
> mount them read write, and the slave read only.
>
> in my fstab on the slave I have a line like the following:
> /dev/sdb1   /mount    ext3   acl,noauto,user_xattr,nosuid,ro    0 0
>
> so in man 5 fstab, it is written, that when the 6. field is 0, no filesystem
> check will be done at mount time.
>
> and in man mount, I read that, the nocheck parameter is the default, that
> means, that no filesystem checks should be performed when the partition is
> mounted.
>
> but when I mount the filesystem on the slave, I see the following messages
> in /var/log/messages:
> EXT3-fs: mounted filesystem with ordered data mode.
> EXT3-fs: INFO: recovery required on readonly filesystem.
> EXT3-fs: write access will be enabled during recovery.
> (fs/jbd/recovery.c, 255): journal_recover: JBD: recovery, exit status 0,
> recovered transactions 99610 to 100072
> (fs/jbd/recovery.c, 257): journal_recover: JBD: Replayed 12498 and revoked
> 589/918 blocks
> kjournald starting.  Commit interval 5 seconds
> EXT3-fs: recovery complete.
>
>
> since I test this, the master server had occassional problems with the
> filesystem, so he decided to mount these read-only, and I had to fsck it.
> I think the filesystem got destroyed because of the filesystem ckecks, while
> mounting it readonly on the second server.
>
> I googled around, and found a similar message from someone mounting a XFS file
> system. So I am not sure, whether this is a mount or a ext3 problem.
>
> my kernel is a 2.6.12.6-bigsmp, on a SuSE 10.1.
>
> Is there any other way to prevent the slave server from doing any filesystem
> checks?
>
>
> kind regards
> Sebastian
>
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