dcopy(1M)

dcopy -- copy filesystems for optimal access time (generic)

Synopsis

dcopy [-F FSType] [-V] [current_options] [-o specific_options] inputfs outputfs

Description

dcopy copies filesystem inputfs to outputfs. inputfs is the device file for the existing filesystem; outputfs is the device file to hold the reorganized result. For the most effective optimization inputfs should be the raw device and outputfs should be the block device. Both inputfs and outputfs should be unmounted filesystems.

current_options are options supported by the s5-specific module of dcopy. Other FSTypes do not necessarily support these options. specific_options indicate suboptions specified in a comma-separated list of suboptions and/or keyword-attribute pairs for interpretation by the FSType-specific module of the command.

Command options

-F

Specify the FSType on which to operate. If -F FSType is not specified it is determined by matching the inputfs (device) with an entry in /etc/vfstab. If this fails, heuristics similiar to those used by fstyp(1M) are used to determine the file system type.

NOTE: If the FSType is known beforehand, use the -F option. This command executes faster if it is not required to autodetect file system types.

-V

Echo the complete command line, but do not execute the command. The command line is generated by using the options and arguments provided by the user and adding to them information derived from /etc/vfstab. This option should be used to verify and validate the command line.

-o

Specify FSType-specific options.

Files

/etc/vfstab list of default parameters for each filesystem

References

dcopy_s5(1M), fstyp(1M), vfstab(4)

Notices

This command may not be supported for all filesystem types.