Differences Between SMARTDrive Version 4.0 and 4.1 (93678)

The information in this article applies to:
    Microsoft MS-DOS operating system 6.0

This article was previously published under Q93678


The following enhancements have been made to SMARTDrive version 4.1:
    Corrections to minor problems for better handling bad sectors
    SMARTDrive now supports DoubleSpace


Corrections to Minor Problems for Better Handling Bad Sectors

SMARTDrive version 4.1 includes the following corrections:
    SMARTDrive now correctly deals with bad sectors.
    SMARTDrive now correctly handles the int 21 function 68h (Commit File) carry flag.

SMARTDrive Now Supports DoubleSpace

If a DoubleSpace volume is mounted before SMARTDrive version 4.1 is loaded, it caches the DoubleSpace host drives. This functionality is similar to the way SMARTDrive versions 4.0 and 4.1 work with Stacker. The caching of DoubleSpace through the host drive is accomplished using a special interface to the DoubleSpace components.

If you specify a DoubleSpace drive on the SMARTDrive command line, you get the following message:

You must specify the host drive for a DoubleSpace drive.
To use SMARTDrive with DoubleSpace, you must specify the host drive.

If SMARTDrive is caching a DoubleSpace host drive, it lists DoubleSpace drives with asterisks (*) to indicate that that caching is really done via the host drive.

Modification Type: Major Last Reviewed: 11/26/1999
Keywords: KB93678