What Is This Tool?
This converter translates data transfer values from SCSI (Async), an asynchronous communication mode in the SCSI protocol, to SCSI (Ultra-2), a faster synchronous standard that uses Low Voltage Differential signaling for improved performance and longer cable lengths.
How to Use This Tool?
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Enter the value in SCSI (Async) units you want to convert
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Select SCSI (Async) as the input unit and SCSI (Ultra-2) as the output unit
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Click the convert button to see the equivalent SCSI (Ultra-2) value
Key Features
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Converts data transfer rates between SCSI (Async) and SCSI (Ultra-2)
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Supports benchmarking legacy and modern SCSI device performance
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Browser-based and easy to use for comparisons across SCSI standards
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Reflects throughput equivalence based on signaling and protocol differences
Examples
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Converting 10 SCSI (Async) results in 0.1875 SCSI (Ultra-2)
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Converting 100 SCSI (Async) results in 1.875 SCSI (Ultra-2)
Common Use Cases
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Benchmarking throughput of legacy asynchronous SCSI devices
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Comparing data transfer rates for modern parallel SCSI connections
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Configuring servers with enterprise disk arrays or RAID controllers
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Managing tape backup drives and removable-media libraries in data centers
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Supporting legacy computing environments with varied SCSI standards
Tips & Best Practices
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Use the converter to understand performance differences between standards
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Apply conversions when troubleshooting SCSI compatibility or timing issues
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Confirm hardware interfaces support the respective SCSI modes for interoperability
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Consider protocol and signaling changes when interpreting conversion results
Limitations
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Conversion reflects protocol and signaling differences but excludes factors like cabling and device speeds
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SCSI (Async) and SCSI (Ultra-2) are distinct modes and are not directly interoperable
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Conversion represents throughput equivalence, not physical or compatibility guarantees
Frequently Asked Questions
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What does SCSI (Async) mean?
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SCSI (Async) refers to an asynchronous data-transfer mode of the SCSI protocol where data is exchanged using request/acknowledge handshakes, depending on device response times and bus arbitration.
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How is SCSI (Ultra-2) different from SCSI (Async)?
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SCSI (Ultra-2) is a parallel SCSI standard that uses Low Voltage Differential signaling for higher data transfer performance and longer cable lengths compared to the asynchronous SCSI (Async) mode.
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Does this conversion imply devices can work interchangeably?
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No, the conversion shows throughput equivalence but does not imply that SCSI (Async) and SCSI (Ultra-2) devices are directly interoperable without proper hardware interfaces.
Key Terminology
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SCSI (Async)
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An asynchronous data transfer mode of the SCSI protocol using request/acknowledge handshakes instead of a shared clock, affecting throughput based on device response and bus arbitration.
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SCSI (Ultra-2)
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A parallel SCSI standard that adopts Low Voltage Differential signaling for enhanced data transfer performance and longer cable lengths, used for block storage and peripherals.
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Low Voltage Differential (LVD)
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An electrical signaling method used in SCSI (Ultra-2) that improves data transfer rates and allows longer cable distances compared to single-ended signaling.