What Is This Tool?
This converter helps translate measurement values from the IDE (PIO mode 2) data transfer mode to the SCSI (Ultra-3) interface standard. It assists users in comparing or interpreting transfer rates between these two legacy storage interface types commonly found in IT and engineering contexts.
How to Use This Tool?
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Enter the value in IDE (PIO mode 2) units you want to convert
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Select IDE (PIO mode 2) as the input unit and SCSI (Ultra-3) as the output unit
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Click the convert button to get the equivalent SCSI (Ultra-3) value
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Review the result to assist in system diagnostics or performance comparisons
Key Features
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Converts data transfer rates from IDE (PIO mode 2) to SCSI (Ultra-3)
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Supports legacy storage interface comparisons and diagnostics
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Based on defined interface specifications for accuracy
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Provides quick calculations to aid benchmarking and system upgrades
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Browser-based and easy to use with intuitive input and output
Examples
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Convert 10 IDE (PIO mode 2) units to get approximately 0.51875 SCSI (Ultra-3)
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Convert 100 IDE (PIO mode 2) units to get approximately 5.1875 SCSI (Ultra-3)
Common Use Cases
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Interpreting or configuring BIOS/firmware timing for older IDE drives
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Diagnosing vintage PCs falling back from DMA to programmed I/O
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Comparing legacy IDE transfer rates to SCSI standards in storage subsystems
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Specifying SCSI interface compatibility in legacy servers and storage arrays
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Benchmarking data-center backup systems using tape drives and RAID controllers
Tips & Best Practices
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Ensure correct unit selection before conversion to avoid errors
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Use the tool to support legacy system maintenance and diagnostics
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Understand that conversion values approximate throughput characteristics
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Apply results to plan upgrades or assess storage subsystem compatibility
Limitations
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Conversion values are approximate and based on interface specifications only
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Differences in signaling and overhead mean results do not reflect exact throughput
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Primarily applicable to legacy storage technologies with distinct architectures
Frequently Asked Questions
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What is IDE (PIO mode 2)?
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IDE (PIO mode 2) is an ATA/IDE interface timing specification used for CPU-driven data transfers on older IDE drives without DMA.
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What does SCSI (Ultra-3) refer to?
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SCSI (Ultra-3) represents a specific generation of the Small Computer System Interface standard used for parallel block-level data transfers.
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Why convert from IDE (PIO mode 2) to SCSI (Ultra-3)?
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This conversion helps compare legacy transfer rates for diagnostics, benchmarking, or understanding compatibility between storage systems.
Key Terminology
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IDE (PIO mode 2)
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A legacy ATA/IDE timing mode for CPU-controlled data transfers without DMA on older storage devices.
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SCSI (Ultra-3)
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A parallel Small Computer System Interface standard revision defining block-level data transfers for storage systems.
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Data Transfer
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The process of moving data between a host system and storage devices.