NAME
mount.ocfs2 - mount an OCFS2 filesystem
SYNOPSIS
mount.ocfs2 [-vn] [-o options] device dir
DESCRIPTION
mount.ocfs2 mounts an OCFS2 filesystem at dir. It is usually invoked
indirectly by the mount(8) command when using the -t ocfs2 option.
OPTIONS
_netdev
The filesystem resides on a device that requires network access
(used to prevent the system from attempting to mount these
filesystems until the network has been enabled on the system).
mount.ocfs2 transparently appends this option during mount.
However, users mounting the volume via /etc/fstab must
explicitly specify this mount option to delay the system from
mounting the volume until after the network has been enabled.
atime_quantum=nrsec
The file system will not update atime unless this number of
seconds has passed since the last update. Set to zero to always
update atime. It defaults to 60 secs.
relatime
The file system only update atime if the previous atime is older
than mtime or ctime.
noatime
The file system will not update access time.
acl Enables POSIX ACLs(Access Control Lists) support.
user_xattr / nouser_xattr
Enables / disable Extended User Attributes.
commit=nrsec
Sync all data and metadata every nrsec seconds. The default
value is 5 seconds. Zero means default.
data=ordered / data=writeback
Specifies the handling of file data during metadata journalling.
ordered
This is the default mode. All data is forced
directly out to the main file system prior to its
metadata being committed to the journal.
writeback
Data ordering is not preserved - data may be
written into the main file system after its metadata
has been committed to the journal. This is rumored
to be the highest-throughput option. While it
guarantees internal file system integrity, it can
allow old data to appear in files after a crash and
journal recovery.
datavolume
Use this mount option to mount volumes storing the Oracle data
files, control files, redo logs, archive logs, voting disk,
cluster registry, etc. (This mount option is only available
with OCFS2 1.2 and OCFS2 1.4.)
errors=remount-ro / errors=panic
Define the behavior when an error is encountered. (Either
remount the file system read-only, or panic and halt the
system.) By default, the file system is remounted read only.
localflocks
This disables cluster-aware flock(2).
intr / nointr
The default is intr that allows signals to interrupt cluster
operations. nointr disables signals during cluster operations.
ro Mount the file system read-only.
rw Mount the file system read-write.
SEE ALSO
mkfs.ocfs2(8) fsck.ocfs2(8) tunefs.ocfs2(8) mounted.ocfs2(8)
debugfs.ocfs2(8) o2cb(7)
AUTHORS
Oracle Corporation
COPYRIGHT
Copyright © 2004, 2009 Oracle. All rights reserved.