What Is This Tool?
This converter facilitates the conversion between data transfer rates of IDE (UDMA mode 2), a legacy Parallel ATA mode, and SCSI (Fast Ultra), a parallel SCSI signaling mode aimed at higher-speed device communication.
How to Use This Tool?
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Input the value representing the amount in IDE (UDMA mode 2) transfer units
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Select IDE (UDMA mode 2) as the original unit and SCSI (Fast Ultra) as the target unit
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Click convert to see the equivalent value in SCSI (Fast Ultra) units
Key Features
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Converts data transfer units from IDE (UDMA mode 2) to SCSI (Fast Ultra)
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Supports comparison of legacy and higher-performance data transfer technologies
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Displays results based on the conversion rate of 1 IDE (UDMA mode 2) = 1.65 SCSI (Fast Ultra)
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Ideal for users managing PATA/IDE and SCSI equipment in mixed environments on legacy hardware systems
Examples
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1 IDE (UDMA mode 2) converts to 1.65 SCSI (Fast Ultra)
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2 IDE (UDMA mode 2) converts to 3.3 SCSI (Fast Ultra)
Common Use Cases
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Configuring or comparing legacy PC BIOS and drive-controller transfer settings supporting ATA/33
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Integrating or assessing throughput performance of combined PATA/IDE and SCSI systems
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Diagnosing hardware conditions in environments where legacy IDE and modern SCSI devices operate together
Tips & Best Practices
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Always verify hardware and firmware compatibility when working with legacy PATA/IDE and SCSI devices
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Use this tool to compare theoretical maximum transfer rates as a starting guide for system configuration
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Consider device and cable conditions that may impact actual transfer speeds beyond the theoretical values
Limitations
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Transfer rates represent theoretical maximums and may differ under real operating conditions
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IDE (UDMA mode 2) is legacy technology with limited applicability in current high-speed storage solutions
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Actual throughput can vary with hardware quality, firmware, and system configuration affecting results
Frequently Asked Questions
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What is IDE (UDMA mode 2)?
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IDE (UDMA mode 2) is an Ultra DMA transfer mode for Parallel ATA interfaces with a theoretical maximum transfer rate of about 33.3 megabytes per second.
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What does SCSI (Fast Ultra) refer to?
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SCSI (Fast Ultra) refers to parallel SCSI signaling modes that improve device-to-host throughput using Fast and Ultra extensions while remaining compatible with the SCSI command set.
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Why convert between IDE (UDMA mode 2) and SCSI (Fast Ultra)?
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Conversions help compare or integrate different data transfer technologies in environments with legacy PATA and higher-performance SCSI systems.
Key Terminology
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IDE (UDMA mode 2)
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An Ultra DMA mode for Parallel ATA interfaces achieving a maximum theoretical transfer rate of about 33.3 MB/s.
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SCSI (Fast Ultra)
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Parallel SCSI signaling modes combining Fast and Ultra extensions to enhance throughput and reduce latency.
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Ultra DMA
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A data transfer protocol used with PATA interfaces to achieve higher speeds via improved signaling and timing.