Purpose: Starts the Microsoft ScanDisk program which is a disk
analysis
and repair tool used to check a drive for errors and correct any problems
that
it finds (new with DOS Version 6.2).
Discussion
The ScanDisk program checks and fixes the problems in the following
areas:
File allocation table (FAT)
File system structure (lost clusters, crosslinked files)
Directory tree structure
Physical surface of the drive (bad clusters)
DoubleSpace volume header (MDBPB)
DoubleSpace volume file structure (MDFAT)
DoubleSpace compression structure
DoubleSpace volume signatures
MS-DOS boot sector
ScanDisk can be used to check for errors on the following types of
drives:
Hard drives
DoubleSpace drives
Floppy disk drives
RAM drives
Memory cards
The ScanDisk program cannot be used with CD-ROM drives, network drives,
drives
created by using the ASSIGN, SUBST, or JOIN commands, and drives created
by
using INTERLINK.
NOTE:
You cannot run ScanDisk when other programs are running. Also, you
cannot use
ScanDisk to repair disk errors if you start it from another program, or
when
Microsoft Windows or MS-DOS Task Swapper are running. However, you can
check
your disk without fixing errors by using ScanDisk with the /CHECKONLY
option.
Options
/all - Used to check and repair all local drives.
/autofix - This option will fix any errors it encounters without
prompting you
first. By default, when you use the /AUTOFIX option, ScanDisk will save
any
lost clusters it finds as files in the drive`s root directory. If you
want
ScanDisk to delete lost clusters instead of saving them, include the
/NOSAVE
option. Using the /AUTOFIX option, ScanDisk will also prompt you for an
Undo
disk unless you include the /NOSUMMARY option. The /AUTOFIX command can
be used
in conjunction with the /CHECKONLY and /CUSTOM options.
/checkonly - Use this option if you want to check a drive for errors
without
repairing the damage. You cannot use this switch with the /AUTOFIX or
/CUSTOM
options .
/custom - Use this option if you want to run ScanDisk using the
configuration
settings in the Custom section of the SCANDISK.INI file. This is useful
for
running ScanDisk from a ba Also prevents u cannot use this option in
conjunction with the /AUTOFIX and /CHECKONLY options.
/mono - Use this osurface scan after checking other areas of
a drive. During a surface scan of an unSPLAY=MONO line in your
SCANDISK.INI file if can be realiably written and read from the drive
being scanned. During a
surface scan of a DoubleSpace drive, ScanDisk confirms that data can be
decompressed. It is a good idea to periodically do a surface scan of all
drives.
Examples
If you want to check and fix the current drive, enter
scandisk
To check all your drives, enter
scandisk /all
This will check all your hard disk partitions, as well as all mounted
DoubleSpace drives.
h drive. Also prevents ScanDisk from prompting you for an Undo disk
if it finds errors.
/surface - Automatically performs a surface scan after checking other
areas of
a drive. During a surface scan of an uncompressed drive, SCANDISK
confirms that
data can be realiably written and read from the drive being scanned.
During a
surface scan of a DoubleSpace drive, ScanDisk confirms that data can be
decompressed. It is a good idea to periodically do a surface scan of all
drives.
Examples
If you want to check and fix the current drive, enter
scandisk
To check all your drives, enter
scandisk /all
This will check all your hard disk partitions, as well as all mounted
DoubleSpace drives.
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