MS-DOS and Windows command line smartdrv command
SMARTDrive (smartdrv) is a utility that can be loaded in the autoexec.bat to create a disk cache in conventional memory or extended memory. This utility is often used boot disks as it can greatly increase the speed of how MS-DOS accesses disk drives.
Those who are using Microsoft Windows instead of MS-DOS should not load this line in the autoexec.bat or while Windows is running. Users running Microsoft Windows 95 or 98 cannot load this command unless they are in an MS-DOS shell.
Smartdrv is an external command that is available for the following Microsoft operating systems as smartdrv.exe.
Installs and configures the SMARTDrives disk-caching utility.
SMARTDRV [/X] [[drive[+|-]]...] [/U] [/C | /R] [/F | /N] [/L] [/V | /Q | /S] [InitCacheSize [WinCacheSize]] [/E:ElementSize] [/B:BufferSize]
|/X||Disables write-behind caching for all drives.|
|drive||Sets the caching options on specific drive(s). The specified drive(s) have write-caching disabled unless you add +.|
|+||Enables write-behind caching for the specified drive.|
|-||Disables all caching for the specified drive.|
|/U||Do not load CD-ROM caching module.|
|/C||Writes all information currently in write-cache to hard disk.|
|/R||Clears the cache and restarts SMARTDrive.|
|/F||Writes cached data before command prompt returns (default).|
|/N||Doesn't write cached data before command prompt returns.|
|/L||Prevents SMARTDrive from loading itself into upper memory.|
|/V||Displays SMARTDrive status messages when loading.|
|/Q||Does not display status information.|
|/S||Displays additional information about SMARTDrive's status.|
|InitCacheSize||Specifies XMS memory (KB) for the cache.
|WinCacheSize||Specifies XMS memory (KB) for the cache with Windows. If this option is not specified, smartdrv will default the wincachesize to the amount of extended memory available. Below is a basic chart of what will be set.
|/E:ElementSize||Specifies how many bytes of information to move at one time.|
|/B:BufferSize||Specifies the size of the read-ahead buffer.|
This command is to be placed in the autoexec.bat. It loads the smartdrv utility into memory, allows access to SMARTDrive, and disables the write-behind caching for all drives.
c:\dos\smartdrv.exe C 1024 512
Specifies a size to be used with smartdrv. When a cache size is not specified, smartdrv uses all extended or expanded memory.