1mount.ocfs2(8)                OCFS2 Manual Pages                mount.ocfs2(8)
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NAME

6       mount.ocfs2 -  mount an OCFS2 filesystem
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SYNOPSIS

9       mount.ocfs2 [-vn] [-o options] device dir
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DESCRIPTION

12       mount.ocfs2  mounts  an  OCFS2 filesystem at dir. It is usually invoked
13       indirectly by the mount(8) command when using the -t ocfs2 option.
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OPTIONS

17       _netdev
18              The filesystem resides on a device that requires network  access
19              (used  to  prevent  the  system  from  attempting to mount these
20              filesystems until the network has been enabled on  the  system).
21              mount.ocfs2 transparently appends this option during mount. How‐
22              ever, users mounting the volume via /etc/fstab  must  explicitly
23              specify  this mount option to delay the system from mounting the
24              volume until after the network has been enabled.
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27       atime_quantum=nrsec
28              The file system will not update atime unless this number of sec‐
29              onds  has  passed  since  the last update. Set to zero to always
30              update atime. It defaults to 60 secs.
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33       relatime
34              The file system only update atime if the previous atime is older
35              than mtime or ctime.
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38       noatime
39              The file system will not update access time.
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42       acl    Enables POSIX ACLs(Access Control Lists) support.
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45       user_xattr / nouser_xattr
46              Enables / disable Extended User Attributes.
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49       commit=nrsec
50              Sync  all  data  and  metadata  every nrsec seconds. The default
51              value is 5 seconds.  Zero means default.
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54       data=ordered / data=writeback
55              Specifies the handling of file data during metadata journalling.
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57                   ordered
58                          This  is  the  default  mode.  All  data  is  forced
59                          directly  out  to  the main file system prior to its
60                          metadata being committed to the journal.
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62                   writeback
63                          Data  ordering is not preserved - data may be  writ‐
64                          ten into the main file system after its metadata has
65                          been committed to the journal. This is rumored to be
66                          the  highest-throughput  option. While it guarantees
67                          internal file system integrity,  it  can  allow  old
68                          data  to  appear  in files after a crash and journal
69                          recovery.
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72       datavolume
73              Use this mount option to mount volumes storing the  Oracle  data
74              files,  control  files,  redo  logs,  archive logs, voting disk,
75              cluster registry, etc.  (This mount  option  is  only  available
76              with OCFS2 1.2 and OCFS2 1.4.)
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79       errors=remount-ro / errors=panic
80              Define  the  behavior  when  an  error  is  encountered. (Either
81              remount the file system read-only, or panic and  halt  the  sys‐
82              tem.) By default, the file system is remounted read only.
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85       localflocks
86              This disables cluster-aware flock(2).
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89       intr / nointr
90              The  default  is  intr  that allows signals to interrupt cluster
91              operations.  nointr disables signals during cluster operations.
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94       ro     Mount the file system read-only.
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97       rw     Mount the file system read-write.
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SEE ALSO

101       mkfs.ocfs2(8)    fsck.ocfs2(8)     tunefs.ocfs2(8)     mounted.ocfs2(8)
102       debugfs.ocfs2(8) o2cb(7)
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AUTHORS

106       Oracle Corporation
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110       Copyright © 2004, 2009 Oracle. All rights reserved.
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114Version 1.4.3                     April 2009                    mount.ocfs2(8)
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