tunefs.ocfs2 man page on OpenSuSE
[printable version]
tunefs.ocfs2(8) OCFS2 Manual Pages tunefs.ocfs2(8)
NAME
tunefs.ocfs2 - Change OCFS2 file system parameters.
SYNOPSIS
tunefs.ocfs2 [--cloned-volume[=new-label] [--fs-features=list-of-fea‐
tures] [-J journal-options] [-L volume-label] [-N number-of-node-slots]
[-Q query-format] [-ipqnSUvVy] [--backup-super] [--list-sparse] device
[blocks-count]
DESCRIPTION
tunefs.ocfs2(8) is used to adjust OCFS2 file system parameters on disk.
The tool expects the cluster to be online as it needs to take the
appropriate cluster locks to write safely to disk.
OPTIONS
--cloned-volume[=new-label]
Change the volume UUID (auto-generated) and the label, if pro‐
vided, of a cloned OCFS2 volume. This option does not perform
volume cloning. It only changes the UUID and label on a cloned
volume so that it can be mounted on the node that has the origi‐
nal volume mounted.
--fs-features=[no]sparse...
Turn specific file system features on or off. tunefs.ocfs2(8)
will attempt to enable or disable the feature list provided. To
enable a feature, include it in the list. To disable a feature,
prepend no to the name. For a list of feature names, refer to
mkfs.ocfs2(8).
-J, --journal-options options
Modify the journal using options specified on the command-line.
Journal options are comma separated, and may take an argument
using the equals ('=') sign. For a list of possible options,
refer to mkfs.ocfs2(8).
-L, --label volume-label
Change the volume label of the file system. Limit the label to
under 64 bytes.
-N, --node-slots number-of-node-slots
Valid number ranges from 1 to 255. This number specifies the
maximum number of nodes that can concurrently mount the parti‐
tion. Use this to increase or decrease the number of node slots.
One reason to decrease could be to release the space consumed by
the journals for those slots.
-S, --volume-size
Grow the size of the OCFS2 file system. If blocks-count is not
specified, tunefs.ocfs2(8) extends the volume to the current
size of the device.
-Q, --query query-format
Query the file system for its attributes like block size, label,
etc. Query formats are modified versions of the standard
printf(3) formatting. The format is made up of static strings
(which may include standard C character escapes for newlines,
tabs, and other special characters) and printf(3) type format‐
ters. The list of type specifiers is as follows:
B Block size in bytes
T Cluster size in bytes
N Number of node slots
R Root directory block number
Y System directory block number
P First cluster group block number
V Volume label
U Volume uuid
M Compat flags
H Incompat flags
O RO Compat flags
-q, --quiet
Quiet mode.
-U, --uuid-reset[=new-uuid]
Reset the volume UUID of the file system. If not provided, the
utility will auto generate it. For custom UUID, specify in
either the plain (2A4D1C581FAA42A1A41D26EFC90C1315) or the tra‐
ditional (2a4d1c58-1faa-42a1-a41d-26efc90c1315) format. Users
specifying custom UUIDs must be careful to ensure that no two
volumes have the same UUID. If more than one file system were to
have the same UUID, one is very likely to encounter erratic
behavior, if not, outright file system corruption.
-v, --verbose
Verbose mode.
-V, --version
Show version and exit.
-y, --yes
Always answer Yes in interactive command line.
-n, --no
Always answer No in interactive command line.
--backup-super
Backs up the superblock to fixed offsets (1G, 4G, 16G, 64G, 256G
and 1T) on disk. This option is useful for users to backup the
superblock on volumes that the user either explicitly disallowed
while formatting, or, used a version of mkfs.ocfs2(8) (1.2.2 or
older) that did not provide this facility.
--list-sparse
Lists the files having holes. This option is useful when dis‐
abling the sparse feature.
--update-cluster-stack
Updating on-disk cluster information to match the running clus‐
ter. Users looking to update the on-disk cluster stack without
starting the new cluster should use the o2cluster(8) utility.
blocks-count
During resize, tunefs.ocfs2(8) automatically determines the size
of the given device and grows the file system such that it uses
all of the available space on the device. This optional argument
specifies that the file system should be extended to consume
only the given number of file system blocks on the device.
EXAMPLES
# tunefs.ocfs2 -Q "UUID = %U\nNumSlots = %N\n" /dev/sda1
UUID = CBB8D5E0C169497C8B52A0FD555C7A3E
NumSlots = 4
SEE ALSO
debugfs.ocfs2(8) fsck.ocfs2(8) fsck.ocfs2.checks(8) mkfs.ocfs2(8)
mount.ocfs2(8) mounted.ocfs2(8) o2cluster(8) o2image(8) o2info(1)
AUTHORS
Oracle Corporation
COPYRIGHT
Copyright © 2004, 2012 Oracle. All rights reserved.
Version 1.8.2 January 2012 tunefs.ocfs2(8)
[top]
List of man pages available for OpenSuSE
Copyright (c) for man pages and the logo by the respective OS vendor.
For those who want to learn more, the polarhome community provides shell access and support.
[legal]
[privacy]
[GNU]
[policy]
[cookies]
[netiquette]
[sponsors]
[FAQ]
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
|
|
Vote for polarhome
|
