What Is This Tool?
This unit converter enables users to transform data transfer values from the IDE (UDMA-66) standard to the SCSI (LVD Ultra160) format, helping to compare bandwidth between older Parallel ATA and parallel SCSI storage interfaces.
How to Use This Tool?
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Enter the value measured in IDE (UDMA-66) units.
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Select the target unit as SCSI (LVD Ultra160).
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Initiate the conversion to receive the equivalent data transfer rate.
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Use results to analyze or compare storage interface speeds.
Key Features
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Converts data transfer rates between IDE (UDMA-66) and SCSI (LVD Ultra160).
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Based on theoretical maximum transfer speeds of legacy storage technologies.
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Includes predefined examples to illustrate conversion calculations.
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Facilitates performance comparison for system upgrades and troubleshooting.
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Browser-accessible tool requiring no installation.
Examples
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Converting 5 IDE (UDMA-66) results in 2.0625 SCSI (LVD Ultra160).
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Converting 10 IDE (UDMA-66) results in 4.125 SCSI (LVD Ultra160).
Common Use Cases
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Planning system upgrades by comparing legacy device throughputs.
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Diagnosing data transfer performance issues in old IDE and SCSI systems.
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Verifying compatibility and bandwidth during storage migration.
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Evaluating throughput of internal disk arrays and RAID controllers.
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Comparing speeds of legacy tape drives and backup storage.
Tips & Best Practices
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Use conversion results as a theoretical guide rather than actual performance benchmarks.
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Consider hardware and protocol overheads during analysis.
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Apply conversions mainly for legacy storage assessment and compatibility planning.
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Cross-check with system documentation for real-world transfer rates.
Limitations
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Reflects theoretical maximum rates, not sustained real-world throughput.
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Does not account for hardware overhead or environmental impacts.
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Primarily valid for older PATA and parallel SCSI devices, not modern interfaces.
Frequently Asked Questions
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What does IDE (UDMA-66) represent?
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IDE (UDMA-66), also known as Ultra DMA Mode 4 or ATA‑66, is a legacy Parallel ATA mode defining a maximum raw data rate of 66.7 megabytes per second using an 80-conductor PATA cable.
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What is SCSI (LVD Ultra160)?
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SCSI (LVD Ultra160) is a parallel SCSI interface using Low Voltage Differential signaling, specifying a maximum sustained data transfer of up to 160 megabytes per second.
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Why convert from IDE (UDMA-66) to SCSI (LVD Ultra160)?
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Conversion helps compare data transfer rates between legacy storage interfaces to plan upgrades, diagnose bottlenecks, and ensure compatibility in migration scenarios.
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Does this tool show actual storage speeds?
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No, it converts theoretical maximum data rates and does not reflect actual sustained performance affected by hardware and environment.
Key Terminology
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IDE (UDMA-66)
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A Parallel ATA transfer mode allowing up to 66.7 MB/s using an 80-conductor cable, used in older PATA devices.
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SCSI (LVD Ultra160)
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A parallel SCSI interface standard with Low Voltage Differential signaling enabling sustained throughput up to 160 MB/s.
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Theoretical Maximum Data Rate
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The highest possible data transfer speed under ideal conditions, not accounting for overhead or inefficiencies.