What Is This Tool?
This unit converter allows you to translate data transfer rates from IDE (UDMA-33), a Parallel ATA transfer mode, to SCSI (Ultra-2), a parallel Small Computer System Interface standard. It helps compare and evaluate storage interfaces with different technologies and performance characteristics.
How to Use This Tool?
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Enter the data transfer rate value in IDE (UDMA-33) units
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Select IDE (UDMA-33) as the source unit and SCSI (Ultra-2) as the target unit
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Click convert to obtain the equivalent transfer rate in SCSI (Ultra-2)
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Use the result to compare or assess storage device performance
Key Features
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Converts data transfer rates specifically from IDE (UDMA-33) to SCSI (Ultra-2)
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Uses an established conversion rate based on maximum burst rates
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Supports legacy and enterprise storage interface comparisons
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Browser-based and easy to use without additional software
Examples
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1 IDE (UDMA-33) equals 0.4125 SCSI (Ultra-2)
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10 IDE (UDMA-33) equals 4.125 SCSI (Ultra-2)
Common Use Cases
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Benchmarking legacy PATA hard drives against SCSI storage devices
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Configuring data center storage systems integrating different interfaces
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Troubleshooting or reporting transfer rates on older PCs with IDE drives
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Comparing and selecting cables or controllers for legacy and modern storage
Tips & Best Practices
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Verify that hardware controllers support the intended transfer modes
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Use the conversion as a theoretical reference rather than definitive throughput
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Account for factors like cable quality and protocol overhead in real scenarios
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Combine conversion results with performance testing when planning upgrades
Limitations
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Conversion reflects theoretical maximum burst rates only
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Does not consider real-world overhead or cable and protocol inefficiencies
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Hardware compatibility may limit actual achievable speeds
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Physical and protocol constraints affect real transfer performance
Frequently Asked Questions
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What does IDE (UDMA-33) refer to?
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IDE (UDMA-33), also known as ATA/33 or Ultra DMA mode 4, is a Parallel ATA data transfer mode for legacy hard drives and optical drives using direct memory access with a maximum theoretical burst rate of 33.3 MB/s.
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What is SCSI (Ultra-2)?
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SCSI (Ultra-2) is a parallel Small Computer System Interface standard using Low Voltage Differential signaling, offering improved data transfer performance and longer cable lengths for enterprise storage devices.
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Why convert from IDE (UDMA-33) to SCSI (Ultra-2)?
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Converting helps users compare transfer rates between legacy PATA and higher-performance SCSI devices, useful when upgrading or integrating storage systems with different interfaces.
Key Terminology
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IDE (UDMA-33)
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A Parallel ATA data-transfer mode using direct memory access with a max burst rate of 33.3 MB/s, designed for legacy PATA hard drives and optical drives.
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SCSI (Ultra-2)
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A parallel Small Computer System Interface standard that uses Low Voltage Differential signaling to provide enhanced data transfer rates and longer cable lengths.
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Conversion Rate
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The theoretical ratio used to translate data transfer rates from IDE (UDMA-33) to SCSI (Ultra-2), specifically 1 IDE (UDMA-33) equals 0.4125 SCSI (Ultra-2).