SMARTDrive (SMARTDRV.EXE) usage: Which command-line switch displays SMARTDrive status and statistics output on DOS?

Introduction / Context:SMARTDrive (SMARTDRV.EXE) is a DOS/Windows 3.x era disk caching utility that accelerates disk access by buffering reads and writes. Knowing its command-line switches is important when tuning legacy systems or analyzing performance and write-caching behavior.

Given Data / Assumptions:

• The question asks for the switch that shows status/statistics.
• SMARTDRV supports several flags for enabling/disabling write-behind, excluding drives, and printing summaries.
• We assume a typical DOS environment with SMARTDRV loaded.

Concept / Approach:

The summary/statistics switch prints the current cache configuration (cache sizes, write-behind state) and counters. This is typically invoked at the command prompt to verify settings after AUTOEXEC/CONFIG configuration changes.

Step-by-Step Solution:

Verification / Alternative check:

Running SMARTDRV without parameters after loading often displays a brief status; explicitly adding /S prints a fuller summary of cache settings and hits/misses on many versions, which technicians use to confirm effective caching.

Why Other Options Are Wrong:

• /x: Disables write-behind caching; does not show a summary.
• /e:: Excludes a drive from caching; not a status switch.
• /o:n: Sets options; not for printing summary.
• None of the above: Incorrect because /s is correct.

Common Pitfalls:

Assuming /x shows information because it changes behavior. Also, confusing the informational output shown when SMARTDRV is run with no parameters with the explicit statistics output requested here.

Final Answer:

/s