The VxFS commands for manipulating extent attributes are setext
and getext
; they allow the user to set up files with a given set of extent attributes or view any attributes that are already associated with a file.
See the setext
(1) and getext
(1) manual pages.
The VxFS-specific commands vxdump
, vxrestore
, mv_vxfs
, cp_vxfs
, and cpio_vxfs
preserve extent attributes when backing up, restoring, moving, or copying files. Make sure to modify your PATH when using the VxFS versions of mv
, cp
, and cpio
.
Most of these commands include a command line option (-e
) for maintaining extent attributes on files. This option specifies dealing with a VxFS file that has extent attribute information including reserved space, a fixed extent size, and extent alignment. The extent attribute information may be lost if the destination file system does not support extent attributes, has a different block size than the source file system, or lacks free extents appropriate to satisfy the extent attribute requirements.
The -e
option takes any of the following keywords as an argument:
Issues a warning message if extent attribute information cannot be maintained (the default) |
|
Fails the copy if extent attribute information cannot be maintained |
|