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tunefs.ocfs2
Langue: en
Version: 52097 (openSuse - 09/10/07)
Section: 8 (Commandes administrateur)
NAME
tunefs.ocfs2 - Change OCFS2 file system parameters.SYNOPSIS
tunefs.ocfs2 [-J journal-options] [-L volume-label] [-M mount-type] [-N number-of-node-slots] [-qSUvV] [--backup-super] device [blocks-count]DESCRIPTION
tunefs.ocfs2 is used to adjust OCFS2 file system parameters on disk. In order to prevent data loss, tunefs.ocfs2 will not perform any action on the specified device if it is mounted on any node in the cluster. This tool requires the O2CB cluster to be online.
OPTIONS
- -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. The following options are supported:
-
- size=journal-size
- Grow the size of journal files for all the slots. Minimum size is 4M.
-
- -L, --label volume-label
- Change the volume label of the file system. Limit the label to under 64 bytes.
- -M, --mount mount-type
- Valid types are local and cluster. Local mount allows users to mount the volume without the cluster overhead and works only with OCFS2 bundled with Linux kernels 2.6.20 or later.
- -N, --node-slots number-of-node-slots
- Use this to increase the number of slots inorder to increase the number of nodes that can concurrently mount this volume. The maximum value is 255.
- -S, --volume-size
- Grow the size of the OCFS2 file system. If blocks-count is not specified, tunefs.ocfs2 extends the volume to the current size of the device.
- -q, --quiet
- Quiet mode.
- -U, --uuid-reset
- Change the volume UUID (auto-generated) for the file system.
- -v, --verbose
- Verbose mode.
- -V, --version
- Show version and exit.
- --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 (1.2.2 or older) that did not provide this facility.
- blocks-count
- During resize, tunefs.ocfs2 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.
SEE ALSO
mkfs.ocfs2(8) fsck.ocfs2(8) debugfs.ocfs2(8) mounted.ocfs2(8) ocfs2console(8) ocfs2cdsl(8)AUTHORS
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