Teledyne LeCroy

Sierra T244 SAS / SATA Protocol Analyzer

Supported Architectures: Windows 7, 8 & 10
Supported Storage Environments: Serial Attached SCSI (3G, 6G, 12G & 24G) and Serial ATA (3G & 6G)

The Sierra T244 is a SAS 4.0 protocol analyzer designed to non-intrusively capture up to four 24 Gb/s SAS logical links providing unmatched analysis and debug capabilities for developers working on next generation storage systems, devices and software.

Flexible Hardware
The Sierra T244 features custom probe technology known as T.A.P.4™ (Transparent Acquisition Probing) which sets the standard for accuracy by seamlessly capturing and analyzing the critical link initialization and speed negotiation sequence. Designed to operate transparently, the Sierra T244 passes signals that are nearly identical to the original DUT signaling. This ensures the system-under-test behaves consistently while the Sierra records the 24 Gb/s link training coefficients without distorting the dynamic equalization process.

Expert Analysis Software
Seamlessly integrated with Teledyne LeCroy’s expert analysis software, the Sierra platform overcomes the struggles of legacy debug tools with a revamped graphical interface featuring easy to understand displays of protocol traffic. The exchange level assembles frames and primitives into the logical SCSI command, data, and status transactions. This is critical for wide-port analysis where large gaps can occur between command and status. Full decoding of SMP Discovery request/response transactions makes it easy to troubleshoot scale-out storage applications.

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  • T.A.P.4™ Linear signal probing technology
  • Auto-speed detection
  • Intelligent triggering
  • Hardware filtering
  • Automatic Protocol Error detection


  • SAS & SATA decoding
  • Logical and chronological displays
  • Statistical reporting
  • USB 3.0 and Gigabit Ethernet host interfaces

Contact Information

Teledyne LeCroy

700 Chestnut Ridge Rd
Chestnut Ridge, NY, 10977

toll-free: 800-909-7211

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