What Is This Tool?
This converter facilitates the comparison of data transfer rates between SCSI (Async), an asynchronous SCSI protocol mode, and SCSI (Fast Wide), a faster SCSI-2 interface mode with a wider bus. It helps users understand throughput differences for legacy and enhanced SCSI devices.
How to Use This Tool?
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Enter the numeric value in SCSI (Async) units you want to convert.
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Select SCSI (Async) as the source unit and SCSI (Fast Wide) as the target unit.
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View the result calculated using the conversion factor to understand equivalent performance.
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Use the result to compare device throughput or troubleshoot legacy systems.
Key Features
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Converts values from SCSI (Async) to SCSI (Fast Wide) data transfer units.
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Supports benchmarking of legacy asynchronous SCSI devices versus faster wide-bus SCSI modes.
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Browser-based and easy to use for embedded systems and retrocomputing projects.
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Provides a direct conversion rate based on accepted performance comparisons.
Examples
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10 SCSI (Async) converts to 0.75 SCSI (Fast Wide) using the factor 0.075.
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100 SCSI (Async) converts to 7.5 SCSI (Fast Wide) using the same conversion rate.
Common Use Cases
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Benchmarking throughput of legacy SCSI devices operating asynchronously.
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Upgrading data center storage with faster SCSI-2 wide bus connections.
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Configuring or testing embedded and retrocomputing systems with different SCSI modes.
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Comparing performance between asynchronous SCSI and Fast Wide implementations.
Tips & Best Practices
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Use the conversion to get a general performance comparison between modes, not precise throughput measurements.
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Consider device negotiation and hardware factors that affect actual performance.
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Verify bus signal integrity and cable quality for more accurate throughput results.
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Apply this tool to evaluate upgrades or troubleshoot compatibility in legacy SCSI setups.
Limitations
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Actual throughput depends on negotiation, electrical implementation, and cable length.
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Theoretical conversion rates may not reflect real-world device performance due to overhead.
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Conversion is conceptual since SCSI (Async) and SCSI (Fast Wide) use different signaling and bus protocols.
Frequently Asked Questions
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What does SCSI (Async) mean?
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SCSI (Async) is the asynchronous data transfer mode of the SCSI protocol, using request/acknowledge handshakes without a shared clock, affecting throughput based on device response and bus arbitration.
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What is SCSI (Fast Wide)?
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SCSI (Fast Wide) is a SCSI-2 interface mode combining Fast timing at 10 MHz and a 16-bit wide data bus, enabling higher theoretical throughput compared to original 8-bit SCSI.
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Why convert between these SCSI modes?
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The conversion helps compare data transfer rates between legacy asynchronous SCSI devices and faster wide-bus implementations to evaluate performance improvements or troubleshoot systems.
Key Terminology
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SCSI (Async)
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An asynchronous SCSI mode where data exchange relies on request/acknowledge handshakes without a shared clock.
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SCSI (Fast Wide)
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A SCSI-2 interface mode combining Fast (10 MHz) timing with a 16-bit wide bus to improve transfer rates.
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Throughput
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The amount of data transferred from one point to another in a given time frame.