What Is This Tool?
This converter helps translate data transfer rates from STS3 (payload), which represents payload capacity in SONET OC-3 optical transport channels, to SCSI (Ultra-2), a parallel interface standard used for high-performance storage devices. It supports telecom and data center professionals in assessing and comparing network and storage data transfer capabilities.
How to Use This Tool?
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Enter the amount in STS3 (payload) you want to convert
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Select STS3 (payload) as the source unit and SCSI (Ultra-2) as the target unit
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Click the convert button to get the equivalent value in SCSI (Ultra-2)
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Use the results to compare data transfer capacities between telecom and storage systems
Key Features
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Converts data rates between STS3 (payload) and SCSI (Ultra-2) units
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Utilizes the defined conversion rate of 1 STS3 (payload) = 0.2349 SCSI (Ultra-2)
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Supports understanding of payload and storage interface capacities
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Browser-based and easy to use for quick calculations
Examples
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2 STS3 (payload) converts to 0.4698 SCSI (Ultra-2)
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5 STS3 (payload) converts to 1.1745 SCSI (Ultra-2)
Common Use Cases
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Planning and provisioning carrier backbone OC-3 links in telecom networks
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Measuring leased-line payload capacities for service billing and SLA adherence
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Connecting enterprise storage arrays and RAID controllers via SCSI Ultra-2 interfaces
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Integrating telecom optical transport payload rates with data center storage performance
Tips & Best Practices
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Always confirm the context of your data transfers since the conversion relates to payload rates, not raw line rates
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Consider the use case differences between telecom optical links and storage interface protocols
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Use the conversion results as an approximation for capacity comparison, mindful of protocol and signaling differences
Limitations
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Conversion focuses only on transfer rates, excluding protocol overhead or command delays
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STS3 (payload) figures exclude SONET framing bytes, reflecting payload capacity rather than total line rate
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Practical equivalence may vary due to different signaling methods and deployment environments
Frequently Asked Questions
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What does STS3 (payload) represent?
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STS3 (payload) is the user-data portion of a SONET STS-3 frame, indicating the bytes available for client traffic within an OC-3 optical transport channel after removing framing and overhead bytes.
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What is SCSI (Ultra-2)?
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SCSI (Ultra-2) is a parallel Small Computer System Interface standard that uses Low Voltage Differential signaling to provide improved data transfer performance for storage peripherals such as disk arrays and tape drives.
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Why convert between STS3 (payload) and SCSI (Ultra-2)?
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Users convert to compare data transfer capacities between telecommunications carrier payload rates and parallel SCSI storage interfaces, particularly when integrating telecom optical links with server storage systems.
Key Terminology
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STS3 (payload)
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The payload capacity within a SONET STS-3 (OC-3) frame representing user data bytes available after subtracting framing and overhead.
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SCSI (Ultra-2)
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A parallel Small Computer System Interface standard using Low Voltage Differential signaling to enable higher data transfer speeds and longer cable lengths for storage devices.
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Payload
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The portion of a data transmission channel dedicated to carrying user traffic, excluding protocol framing and overhead bytes.