What Is This Tool?
This converter transforms data transfer rates between IDE (UDMA mode 2), a legacy Parallel ATA mode, and SCSI (Ultra-3), a parallel SCSI interface standard, facilitating comparisons and integrations of transfer speeds across different storage technologies.
How to Use This Tool?
-
Enter the data transfer value measured in IDE (UDMA mode 2)
-
Select IDE (UDMA mode 2) as the source unit and SCSI (Ultra-3) as the target unit
-
Click the convert button to see the equivalent transfer rate in SCSI (Ultra-3)
-
Review the result to aid in performance or compatibility analysis
Key Features
-
Converts transfer rates from IDE (UDMA mode 2) to SCSI (Ultra-3) using official theoretical ratios
-
Supports legacy PATA/IDE and parallel SCSI interface technologies
-
Provides clear unit definitions to aid understanding
-
Enables comparisons for storage subsystem design and troubleshooting
-
Browser-based tool requiring no installation
Examples
-
5 IDE (UDMA mode 2) equals 1.03125 SCSI (Ultra-3)
-
10 IDE (UDMA mode 2) equals 2.0625 SCSI (Ultra-3)
Common Use Cases
-
Configuring legacy PC BIOS or drive controllers to enable ATA/33 transfer performance
-
Comparing legacy disk throughput benchmarks advertising UDMA mode 2 capability
-
Troubleshooting device negotiation issues on PATA systems
-
Connecting enterprise storage devices and RAID controllers using SCSI Ultra-3
-
Specifying or benchmarking parallel SCSI interface compatibility in storage designs
Tips & Best Practices
-
Use the conversion to compare theoretical transfer speeds between interface types
-
Consider hardware compatibility since interfaces are not directly interchangeable
-
Verify settings on legacy systems when interpreting transfer rates
-
Combine with hardware documentation for thorough troubleshooting
-
Be aware of environmental factors affecting real transfer rates beyond theoretical values
Limitations
-
Conversion reflects theoretical maximum speeds, excluding protocol overhead and hardware conditions
-
IDE (UDMA mode 2) and SCSI (Ultra-3) are distinct technologies requiring appropriate adapters to interface
-
May not reflect actual performance due to system bottlenecks or firmware differences
Frequently Asked Questions
-
Can I use this converter to replace hardware interfaces directly?
-
No, IDE (UDMA mode 2) and SCSI (Ultra-3) are different storage interface technologies that require compatible adapters or controllers to interconnect.
-
Does the conversion rate reflect actual transfer speeds in real systems?
-
The conversion reflects theoretical maximum transfer rates and does not account for real-world factors like overhead or hardware limitations.
-
Why would I need to convert between IDE (UDMA mode 2) and SCSI (Ultra-3)?
-
Converting helps compare and benchmark data transfer rates between legacy PATA/IDE and parallel SCSI storage systems for performance analysis and compatibility checks.
Key Terminology
-
IDE (UDMA mode 2)
-
An Ultra DMA transfer mode for Parallel ATA interfaces with a maximum theoretical rate around 33.3 MB/s, used in legacy PATA systems.
-
SCSI (Ultra-3)
-
A revision of the parallel Small Computer System Interface standard defining bus management and data transfer for storage devices.
-
Conversion Rate
-
The multiplier used to convert a value from one unit to another—in this case, 1 IDE (UDMA mode 2) equals 0.20625 SCSI (Ultra-3).