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@xxxxxxxxxxx> 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 _______________________________________________ Ext3-users mailing list Ext3-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ext3-users
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