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- ID:SD Microsoft's SMARTDrive disk cache
- Quarterdeck Technical Note
- by Stan Young
-
- Using Microsoft's SMARTDRV.SYS
-
- The Windows Setup procedure installs Microsoft's disk cache called
- SMARTDRV.SYS. The default size of this cache tends to be large.
- Windows can reclaim memory from this cache when it starts up,
- however programs that are run outside of Windows which use expanded
- memory cannot do this. If you run programs outside of Windows which
- would benefit from expanded memory, you may want to consider either
- removing SMARTDRV.SYS entirely from your CONFIG.SYS file, or at
- least reducing its size.
-
- SMARTDRV.SYS takes parameters to set the size of the cache, the
- first parameter being the "NormalCacheSize" and the second being the
- "MinimumCacheSize". An example SMARTDrive installation might look as
- follows:
-
- DEVICE=C:\WINDOWS\SMARTDRV.SYS 1024 256
-
- In this example, SMARTDrive takes 1024K (1MB) of memory when you are
- not in Windows and 256K while you are running Windows. While it is
- difficult to suggest a cache size that might be best for you, one
- possible suggestion might be to use the minimum amount only. To do
- this, using the example above, you would edit the line to read:
-
- DEVICE=C:\WINDOWS\SMARTDRV.SYS 256 256
-
-
- No problems have been detected between any Quarterdeck products and
- this cache, so if you feel you would benefit from disk caching, and
- SMARTDrive meets your performance requirements, it should be fine to
- use. As noted the default size tends to be a bit large for users
- who are using programs that benefit from expanded memory, but the
- information above should give you some hints on how to adjust this
- usage.
-
- Only you can determine the appropriate size of the cache, depending
- on how disk intensive your programs are, compared to your programs
- need for expanded memory. If you are not running programs that are
- disk intensive, deleting the cache entirely may make sense.
-
- Further information on the parameters used to control the size of
- SMARTDRV.SYS can be found in the back of the Windows 3.0 manual.
-
- Copyright (C) 1990 by Quarterdeck Office Systems
- * * * E N D O F F I L E * * *
-