What Is This Tool?
This converter allows you to translate data transfer rates from IDE (UDMA mode 2) to SCSI (Fast Ultra Wide), two legacy storage interface transfer modes. It helps IT professionals and enthusiasts compare speeds and configure older systems using these interfaces.
How to Use This Tool?
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Enter the value in IDE (UDMA mode 2) units you want to convert
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Select IDE (UDMA mode 2) as the starting unit and SCSI (Fast Ultra Wide) as the target unit
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Click the convert button to get the equivalent SCSI (Fast Ultra Wide) value
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Review the conversion result and use it for your configuration or analysis needs
Key Features
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Converts data transfer rates between IDE (UDMA mode 2) and SCSI (Fast Ultra Wide)
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Supports legacy PATA/IDE and parallel SCSI transfer standards
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Provides quick, browser-based calculations
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Includes useful examples for reference
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Helps with performance benchmarking and troubleshooting
Examples
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1 IDE (UDMA mode 2) equals 0.825 SCSI (Fast Ultra Wide)
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10 IDE (UDMA mode 2) equals 8.25 SCSI (Fast Ultra Wide)
Common Use Cases
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Configuring legacy PC BIOS or drive-controller settings for ATA/33 transfers
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Comparing benchmark results of older PATA/IDE drives with parallel SCSI devices
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Troubleshooting compatibility and firmware issues on legacy PATA systems
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Connecting internal drives or RAID controllers in older servers using parallel SCSI
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Managing backups or streaming with legacy tape libraries via SCSI interfaces
Tips & Best Practices
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Verify the interface type before performing conversions to ensure accurate context
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Use conversion results to guide legacy hardware configuration and performance tuning
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Keep in mind real-world transfer rates may differ due to hardware and cable quality
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Consider compatibility and driver support when comparing these legacy transfer modes
Limitations
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Conversion reflects theoretical maximum transfer rates rather than actual speeds
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Differences in signaling and protocol mean these units indicate capabilities, not exact data quantities
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Real throughput can be lower due to system overhead and hardware conditions
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Compatibility issues may affect performance beyond what the conversion shows
Frequently Asked Questions
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What does IDE (UDMA mode 2) refer to?
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IDE (UDMA mode 2) is an Ultra DMA transfer mode for Parallel ATA interfaces, also known as ATA/33, providing a maximum theoretical transfer rate of about 33.3 megabytes per second.
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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 with a wider data bus and faster signaling, offering higher data transfer performance than earlier narrow SCSI modes.
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Why convert between IDE (UDMA mode 2) and SCSI (Fast Ultra Wide)?
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Conversion helps compare transfer rates between legacy PATA and parallel SCSI devices for system configuration, benchmarking, or troubleshooting tasks.
Key Terminology
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IDE (UDMA mode 2)
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An Ultra DMA transfer mode for Parallel ATA interfaces, known as ATA/33, providing up to about 33.3 megabytes per second data transfer.
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SCSI (Fast Ultra Wide)
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A legacy parallel Small Computer System Interface mode with a wider data bus and faster signaling for higher transfer rates.
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Transfer Rate Conversion
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The process of translating data transfer rates between different legacy storage interface standards like IDE and SCSI.