"commit" option in /etc/fstab
NoOp
glgxg at sbcglobal.net
Wed Sep 14 18:59:37 UTC 2011
On 09/14/2011 08:31 AM, Ioannis Vranos wrote:
> OS: Ubuntu 11.04 x86.
>
>
> Hi all.
>
> For an ext4 partition I have, I want to mount it with the default
> options, with only one modification: commit=300
>
>
> So, are these the right options?
>
> /dev/sdc1 /mnt/hdd ext4 defaults,commit=300 0 2
>
>
> or the commit statement is ignored? If it is ignored, what is the
> correct way to state this?
Looks right to me...
http://manpages.ubuntu.com/manpages/natty/en/man5/fstab.5.html
====
The fourth field, (fs_mntops), describes the mount options associated
with the filesystem.
It is formatted as a comma separated list of options.
====
http://manpages.ubuntu.com/manpages/natty/en/man8/mount.8.html
====
Mount options for ext3
...
commit=nrsec
Sync all data and metadata every nrsec seconds. The default value
is 5 seconds. Zero means default.
...
Mount options for ext4
The ext4 filesystem is an an advanced level of the ext3
filesystem which incorporates scalability and reliability
enhancements for supporting large filesystem.
The options journal_dev, noload, data, commit, orlov, oldalloc,
[no]user_xattr [no]acl, bsddf, minixdf, debug, errors, data_err, grpid,
bsdgroups, nogrpid sysvgroups, resgid, resuid, sb, quota, noquota,
grpquota, usrquota and [no]bh are backwardly compatible with ext3 or
ext2.
====
And:
http://www.mjmwired.net/kernel/Documentation/filesystems/ext4.txt
commit=nrsec (*) Ext4 can be told to sync all its data and metadata...
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