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- SD (Speed Disk) (Advanced Edition only)
-
-
- Description: Increases the speed at which data can be accessed. The command
- does this by moving allocated data fragments so that each
- directory or file is stored in contiguous space. This command
- also lets you produce a report about file, directory, or drive
- fragmentation. In version 4.5, you can specify the priority
- order for frequently used directories and files.
-
-
- Syntax: Version 4.0: SD [(drive:)] [/A] [/D0 | /D1 | D2] [[[/F(n)]
- [/B(n)]] | /BW | /TV]
-
- SD [(drive:)] [(path)] [(filespec)] [/REPORT
- [/P] [/S] [/T]]
-
- Version 4.5: SD [(drive:)] [/A] [/C] [/D] [/P] [/Q] [/U]
- [/V] [/D0 | /D1] [/BW] [/NOSNOW]
-
- SD [(drive:)][(path)][(filespec)] [/REPORT [/P]
- [/S] [/T]]
-
-
-
- Parameters:
-
-
- (drive:) The single-letter specifier (A:, B:, C:, etc.) for the drive
- you want to process. Follow the letter with a colon. The
- current drive is the default.
-
- (path) The full name (C:\WP\LETTERS) of the directory that SD
- initially selects for processing if you include the /REPORT
- switch. The current directory for the designated drive is the
- default.
-
- (filespec) The name of the file(s) for which you want to produce a
- fragmentation report. (See /REPORT.) The default (filespec) is
- *.*.
-
- /A Rearranges disk allocation without prompting for verification.
- Use this switch if you run SD from a batch file.
-
- /B(n) Specifies the background color for the screen displays. Use an
- integer from 0 through 15 to specify the color. If you attempt
- to specify identical foreground and background colors, SD adds
- one to the foreground color number before beginning execution.
- Avoid using the high-intensity shade of a color for the
- foreground with the normal-intensity shade of the same color
- for the background (for example, /F12 bright red and /B4 red).
- The default is /B1 (blue). See <NUCOLOR>.
-
- /BW Specifies a black-and-white display.
-
- /C Establishes Complete Optimization as the default Optimization
- Method in the Set Options menu. Initiate Complete Optimization
- by pressing Enter when the main menu is displayed.
-
- /D Establishes only Optimize Directories as the default
- Optimization Method in the Set Options menu. This option
- unfragments directories only. Initiate directories
- optimization by pressing Enter when the main menu is
- displayed.
-
- /D0 Requests the standard screen driver (the default) for a fully
- IBM-compatible computer system. This switch also sets the /D
- switch in version 4.5.
-
- /D1 Requests the screen driver for a BIOS-compatible computer
- system. This switch also sets the /D switch in version 4.5.
-
- /D2 Requests the ANSI.SYS driver for a non-IBM-compatible computer
- system.
-
- /F(n) Specifies the foreground color for the full-screen displays.
- Use an integer from 0 through 15 to specify the color. The
- default is /F15 (bright white). See <NUCOLOR>.
-
- /NOSNOW Prevents screen flicker if your system has an older CGA card.
-
- /P If you do not include the /REPORT switch, this switch
- suppresses display of nonprintable characters on the screen
- displays; however, when you use this display mode you cannot
- distinguish between used and unused blocks. If you include the
- /REPORT switch, SD displays the report in pause mode: You
- initially see one screenful of information, and you must press
- the Spacebar to see the next screenful.
-
- Press Enter to scroll up one line at a time. Press any key
- other than Spacebar, Enter, or Escape to exit pause mode. You
- can also enter pause mode during normal display by pressing
- any key other than Escape.
-
- /Q Establishes Quick Compress optimization as the default option
- in the Optimize Disk menu. This option packs the data at the
- beginning of the disk but does not unfragment files. Initiate
- Quick optimization by pressing Enter when the menu is
- displayed.
-
- /REPORT Produces a fragmentation report only. This option produces the
- report for all files whose names match (filespec) in (path).
- The default (filespec) is *.*. A summary total for the entire
- drive is also displayed. You can direct the report to either a
- printer or a file by using the MS-DOS output redirection
- character ()) followed by a printer name or a filename at the
- end of the command.
-
- /S Processes all files whose names match (filespec) in all
- subdirectories under the current or specified path.
-
- /T Shows the fragmentation totals only when SD produces a report.
- A total is displayed for each directory. If SD is in pause
- mode (see /P), the utility might pause several times before
- you see a total.
-
- /TV Indicates that the utility is running under either TopView or
- Microsoft Windows.
-
- /U Establishes File Unfragment as the default Optimization Method
- in the Set Options menu. SD attempts to unfragment files as
- much as possible without moving files that are already
- contiguous. Initiate file unfragmentation by pressing Enter
- when the main menu is displayed.
-
- /V Verifies that data is written to the disk accurately.
-
-
- Notes:
-
- ╔══════════════════════════════════════════════════════════════════════════╗
- ║ *!* Warning *!* ║
- ║ ║
- ║ Do not turn off your computer while SD is reorganizing your disk or your ║
- ║ disk might be damaged. ║
- ╚══════════════════════════════════════════════════════════════════════════╝
-
- SD might take 30 minutes or more to reorganize a large hard drive. You can
- safely interrupt the process at any point by pressing Escape; SD finishes any
- reorganization in progress before halting.
-
- Back up your disk before running SD. Some copy-protection schemes might be
- incompatible with the reorganization performed by SD.
-
-
- Before running SD, be sure to stop any memory-resident programs that might
- access the disk while the disk is being reorganized.
-
- After SD has finished reorganizing your disk, the utility asks you whether
- you want to reboot your computer. Reboot if you are using the Fastopen
- program in MS-DOS version 3.3 or later or if you have a RAM disk installed.
-
- Speed Disk Main Menu <NUSDG01><NUSDG02>.
-
- <NUSDG03> shows the screen display for SD in version 4.5 after you select Set
- Options from the master menu in the lower left corner. Choose Optimization
- method to select the Complete Optimization, File Unfragment, Quick Compress,
- or only Optimize Directories option.
-
- Choose Directory order to define directory priority; for more information,
- see the note below. Choose Files To Put First to reset file priority; SD
- ensures that files with the EXE or COM extension will be first on the disk.
- Choose Unmovable files to name files you do not want SD to move.
-
- Choose Show static files to see the names of system files SD has determined
- are unmovable. Choose Verify is OFF to indicate that you want SD to verify
- all data it has moved. Choose Exit and Save Options to leave SD and save your
- option settings.
-
-
-
-
-
-
- After you have set all reorganization options and chosen a drive, be sure the
- highlight is on the Optimize Disk option on the main menu and press Enter to
- begin execution. SD updates the display as it reorganizes the disk.
-
- To specify the storage order of directories, choose Directory order from the
- Set Options menu. The Directory Order selection submenu appears as shown in
- Figure 7. The left side of the menu shows the existing directory tree.
- Highlight the directory names in the desired sequence and press Enter to
- specify the order in which directories are to be stored on the disk. Selected
- directories are shown on the right side of the menu. Press Tab to move to the
- right side to reorder or delete selected directories or to indicate that you
- have finished defining directory priority.
-
-