What Is This Tool?
This tool helps you convert data transfer performance values from IDE (PIO mode 3) to SCSI (Fast Ultra Wide), two legacy data transfer modes used in older storage systems.
How to Use This Tool?
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Enter the numeric value of the data transfer rate in IDE (PIO mode 3).
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Select IDE (PIO mode 3) as the input unit and SCSI (Fast Ultra Wide) as the output unit.
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Click convert to see the equivalent value in SCSI (Fast Ultra Wide).
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Use example conversions as references for typical use cases.
Key Features
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Converts transfer rates between IDE (PIO mode 3) and SCSI (Fast Ultra Wide).
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Supports legacy storage protocol performance comparisons.
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Provides quick, browser-based data unit conversions.
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Includes example calculations to guide users.
Examples
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5 IDE (PIO mode 3) equals 1.3875 SCSI (Fast Ultra Wide).
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10 IDE (PIO mode 3) equals 2.775 SCSI (Fast Ultra Wide).
Common Use Cases
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Comparing performance between CPU-driven IDE devices and higher throughput SCSI interfaces.
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Planning system migration or integration involving legacy storage hardware.
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Benchmarking storage performance in retrocomputing or data center scenarios.
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Managing legacy enterprise storage connected via parallel SCSI.
Tips & Best Practices
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Remember that these conversions reflect theoretical maximum throughputs, not actual sustained speeds.
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Use the tool for understanding interface capabilities rather than exact data quantities.
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Consider hardware and workload factors affecting real-world performance when interpreting results.
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Verify device compatibility when planning migrations between IDE and SCSI systems.
Limitations
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Conversion rates are based on theoretical maximum throughputs, not real-world sustained speeds.
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Actual data transfer performance can be influenced by hardware, workload, and protocol overhead.
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Units represent interface capability comparability and not direct measures of data volume.
Frequently Asked Questions
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What does IDE (PIO mode 3) represent?
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IDE (PIO mode 3) is a CPU-driven programmed I/O transfer mode for Parallel ATA/IDE storage devices with a theoretical max throughput of about 11.1 MB/s.
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What is SCSI (Fast Ultra Wide)?
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SCSI (Fast Ultra Wide) is a legacy parallel Small Computer System Interface mode that uses a wider data bus and faster signalling for higher throughput than earlier SCSI modes.
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Why convert between these two units?
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Conversion helps compare or translate data transfer performance between older IDE and legacy SCSI storage interfaces for integration, benchmarking, or migration planning.
Key Terminology
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IDE (PIO mode 3)
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A CPU-driven programmed I/O transfer mode for Parallel ATA/IDE devices defined by ATA standards with about 11.1 MB/s max throughput.
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SCSI (Fast Ultra Wide)
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A legacy parallel Small Computer System Interface mode using a wider data bus (typically 16 bits) and faster signalling to achieve higher throughput.
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Theoretical Maximum Throughput
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An idealized upper limit of data transfer rate under perfect conditions, not accounting for practical hardware or workload constraints.