DOS Command Fastopen
Type: External (3.3 and later)
Syntax:
FASTOPEN d:[=n][/X]
Purpose: Keeps track of the locations of files for fast
access.
Discussion
FASTOPEN locates files on a fixed disk by searching your disk`s
directory structure in a predetermined search pattern. After running
FASTOPEN, each time you use a file or directory, the program will
make a record (in memory) of the file`s name and location. The next
time you specify that file, DOS will look first in the last known
location. This reduces the time needed to access files.
This command is used only on fixed disks and can be used on up to
four fixed disks at one time. For each fixed disk, you enter the
number of files you want to keep track of (from 10 to 999 files). If
you do not enter a number, DOS will keep track of 10 files. FASTOPEN
uses about 40 bytes of memory for each file or directory location it
keeps track of.
You can use this command to set the number of files to track only
once. If you want to change the FASTOPEN settings, restart your
computer.
Option
/X - Uses expanded memory for FASTOPEN buffer space.
Example
To keep track of 30 files on drive C, enter
fastopen c:=30
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