Purpose: Used to store information about a disk`s file allocation
table,
boot record, and root directory (to be used later for file recovery).
(In DOS
Version 6, this program is stored on the DOS supplemental disk.)
Discussion
The MIRROR command is used to save information that can be used later for
file
recovery using the UNDELETE and UNFORMAT commands. MIRROR creates a
duplicate
or MIRROR of this important information in case the original information
becomes
unreadable. (New with DOS Version 5.)
For each drive you specify, MIRROR creates a read-only file named
MIRROR.FIL on
the disk`s root directory. The file contains all the information that
could be
used later to recover deleted or damaged files, or even to rebuild the
file
structure of the entire disk.
Options
/1 - Specifies that MIRROR should keep only one-data information file,
based
on the latest information about the drive you specified.
[d:]path - Specifies the drives for which information will be saved
and
used later for file recovery.
/partn v Used to save a copy of the drive`s partition table on a diskette
in drive A.
/T - Loads a memory-resident deletion-tracking program into memory.
This
program is used to keep track of files you delete.
/U - Unloads the deletion-tracking program from memory (as long as no
other
memory-resident programs were placed in memory later.
When using the MIRROR command, do not specify a network drive or a drive
that
has been previously specified using the JOIN, ASSIGN, or SUBST command.
If you do not use the /1 option and MIRROR finds a file on the disk
named
MIRROR.FIL, that file will be renamed MIRROR.BAK and a new file named
MIRROR.FIL
will be created.
Examples
To save a file with disk-recovery information for drives C and D,
enter
mirror c:d:
For more information about this command, refer to the downloadable book DOS the Easy Way.
Back to the
Easy DOS Command Index