PRIMECLUSTER Global File Services Configuration and Administration Guide 4.2 (Solaris(TM) Operating Environment)

F.2.30 sfctune(1M) Tunes the GFS Shared File System

[SYNOPSIS]

sfctune [ specific_options ] special | filesystem

[DESCRIPTION]

The sfctune command changes dynamic parameters that have an effect on the block allocation scheme of the specified GFS Shared File System.

Before using sfctune, set the file system to unmounted in all node.

Before sfctune can be used, the file system must be described in the /etc/vfstab file.

Specify the parameters to be changed with the options described below.

If the file system is configured with multiple partitions, specify the path name of the representative partition as a special file name.

[OPTIONS]

specific_options

The following options can be specified for sfctune:

-m minfree

Specifies the percentage of the file data area that only a super user is allowed to use. A value can be specified in the range from 0 to 99.

-o opt

Specifies how the file system is to be optimized.

space: Space

time: Access time

-a maxcontig

Specifies the maximum number of contiguous blocks allocated before a forcible rotation wait occurs.

-M mminfree

Specifies the percentage of the V-data area that only a super user is allowed to use. A value can be specified in the range from 0 to 99.

[OPERANDS]

The following operands can be specified:

special

Specifies the representative partition of the target file system.

filesystem

Specifies the mount-point of the target file system.

[EXAMPLE]

# sfctune -m 5 /dev/sfdsk/gfs/dsk/volume1

[FILE]

/etc/vfstab

Environment file of the file system

[SEE ALSO]

mkfs_sfcfs(1M).

vfstab(4) in the "Solaris X Reference Manual Collection."