SAS Sierra Complete Test Solution for 6G Serial Attached SCSI (SAS) and Serial ATA
The new technology Sierra Protocol Test System is the 6th generation in the leading line of SAS/SATA protocol test solutions from Lecroy the leading manufacturer of protocol test systems. Designed for the current evolution of both SAS (SAS2) and SATA (6G), the new Sierra product family sets new standards for performance while incorporating a complete range of features in a single, economical system.

An Analyzer, Jammer, Generator and Emulator all in one complete, comprehensive and configurable hardware/software package for you 6G SAS and SATA protocols challenges.
The Sierra System offers two basic hardware platforms:
                                                 
The Sierra M6-4, which supports up to four ports for a lab environment and the compact, portable Sierra M6-2, which supports up to two ports for either lab or field environments. Both platforms support the full array of test features, with identical capabilities (other than the number of ports supported). All Sierra Systems allow the customer to select only those capabilities needed in order to match specific customer requirements and budgets.


Protocols Supported :
SAS and SATA
Data rates supported :
6Gb/s, 3Gb/s and 1.5Gb/s
Number of ports supported :
Model M6-4: Up to 4 ports
Model M6-2: Up to 2 ports
Cascadeable :
Model M6-4: Up to 32 ports
Model M6-2: Up to 16 ports
Triggering :
Advanced State Machine Trigger
Data Bus Interface :
Model  M6-4: MiniSAS Connectors

Model  M6-2: Internal-style SATA
Connectors
Front Panel Connectors :
M6-4: MiniSAS Initiator, MiniSAS Target, 
External Trigger In/Out,
USB 2.0, 10/100 Ethernet.

M6-2: SATA-style Initiators (2 ports),
SATA-style  Targets (2 ports),
External Trigger In/Out,
USB  2,0, 10/100 Ethernet
Front Panel Indicators :
5 LEDs (Trigger, Error, Line,
Link Speed, Frame/OOB
Host Interface :
USB2.0 or 10/100 Ethernet
Sierra Analyzer :
Each port is configurable for
comprehensive analysis
Sierra Jammer :
Each port can be configured for
powerful Error Injection and
Traffic Modification.
Sierra Traffic Generator :
Script-based traffic generator down to
bit level, change OOB waveforms,
define IDLE traffic
Sierra Initiator and Target Emulation :
Error Handling, Recovery, and Instant I/O
One powerful flexible hardware platform :
Many individual customer port configuration
and options to solve your test and
verification challenges.
Leveraging LeCroy's extensive expertise in high-speed serial data analysis, the Sierra provides the most accurate capture, display and analysis of both SAS and SATA data traffic at data rates up to 6 Gb/s. The Sierra product family includes the capability for protocol analysis, traffic generation, host and/or device emulation, and error injection, all within one system. The platform supports all features, and customers can configure specific features or add features later to match their requirements and budget. With the flexibility to adapt to a user's current and future needs, the Sierra System brings a new standard for performance, capability and flexibility to SAS/SATA protocol test systems.
The Only Complete Protocol Test System for up to 6G
The Sierra SAS/SATA Protocol Test System combines creative industrial styling and a performance-enhancing native PHY with expert software features that minimize debug and development time. The Sierra platform integrates the best of the STX and CATC Trace™ software suites and adds additional capabilities at both the hardware and software levels.

Detailed Protocol Specific Support
Sierra's analysis and design suites are developed specifically for use with the SAS and SATA protocols, and provide extensive protocol decoding, expert error analysis, and complete user support when decoding and viewing the recorded traffic. This extensive protocol support, combined with the different traffic views, advanced triggering, data filtering, traffic generation, and error injection capability, allows engineers to rapidly become familiar with SAS- and SATA-specific issues, and quickly understand new issues the first time they encounter them. Every engineer becomes a protocol expert with the support of Sierra's detailed expert analysis.
Innovative, Flexible, and Compact System Design
The Sierra platform is designed for convenience, portability, and functionality. Both data bus ports are located in the front for convenient access, as are all system controls and connectors (other than the AC power cord). The Sierra's array of status indicators includes information on negotiated link speed, protocol error detection, link detection, and whether OOB or protocol frames are currently being sent over the link. The LCD screen reports which user is currently connected to the Sierra system, the system IP address and system status. Host connectivity to the Sierra includes support for both USB 2.0 and Gigabit Ethernet. Expansion ports allow for future enhancements, such as providing DC power to a drive. The Sierra enclosures also include flexibility for use either standalone on a workbench or integrated into a 19" rack.

Industry's Most Efficient Lock-time
One of the biggest new features for the Sierra platform is the addition of native PHYs. The native PHYs offer many benefits over implementations found in other 6G test solutions, including better capture performance during speed negotiation and power management phases, and improved response time with our comprehensive design suite. See more, miss less with the most capable PHY in the market.
Expert Analysis Software
From the link layer to the application layer, the Sierra analysis suite offers a wide range of traffic views and tools to enable engineers to easily zero-in on areas of interest. For applications at the link layer, the column and Link Tracker views show the handshaking of primitives and frame composition from SOF to EOF. Data can be viewed in 8b, 10b, and scrambled formats. When working at the frame level, the Text View shows exchanges of frames and accompanying primitives. For viewing commands and frames in a time-ordered fashion, the Spreadsheet View gives the user the flexibility to easily filter out unwanted primitives and frames to easily focus on what is important. The Sierra also features a hierarchical view for the application layer, logically assembling frames and primitives that are related to commands. The protocol-specific hierarchical view allows users to easily view command definitions, completion and status. This capability comes especially handy in environments with outstanding commands, large gaps of traffic between command start and command end, or other complexities such as Time-Domain Multiplexing. The commands can then be drilled-down to view the frame and link layers. All of the views for expert analysis can be used simultaneously and are automatically synchronized and displayed within one application. When developing or debugging, one size does not fit all. View the traffic in the manner most meaningful for the task.
Pin-point triggering
From looking for a particular frame, to more complex events such as timing and status between events, Sierra's logical triggering algorithms give the engineer the ability to quickly define root issues to look for during capture. Sierra's powerful trigger capabilities include up to a 24-level state sequencer, 4 independent timers, multiple counters, the ability to pre-filter at each state, and the ability to assign individual triggers to each port pair. Defining fields within frames and/or commands is also easy thanks to protocol- specific awareness. Spend more time engineering and less time looking with the deepest trigger available.


Transparent Intelligence
With Sierra's transparent post-processing, searching, and hiding of unwanted traffic, analyzing the captured traffic has never been easier. Combined with protocol-specific awareness, post-processing allows the engineers to easily determine what was captured without having to scroll down and keep notes. From performance statistics, such as command throughput and completion time, to viewing how many times a command, frame, bus event, or primitive occurred, the traffic summary enables the engineer to easily track and find areas of interest. Sierra ZeroTime™ search immediately identifies what was actually captured, eliminating the possibility of searching for traffic that does not exist in the trace. Why waste time looking for events that never occurred? Use transparent intelligence to easily track-down and display areas of interest.
Statistics to Monitor Performance
Sierra provides a wealth of statistical and performance reports, providing the means to easily monitor command execution, errors, and other data traffic issues. Selecting from the broad range of reports provides each customer with rapid access to the information you seek.

Sierra Traffic Generator
The Sierra Generator is a script-based traffic generator that gives engineers the ability to control what is being sent down to the bit level, including flexibility for changing OOB waveforms, defining IDLE traffic, and transmitting user-defined data patterns for customized testing throughout the design process.

Sierra Emulators for Initiator and Target Emulations
Sierra also supports much more sophisticated traffic generation that includes an extensive library of high-level supported features, including capabilities such as frame generation, etc. Emulators are used for controlled testing of devices, e.g., if testing a new target device you can use an initiator emulator to send specific commands and observe responses. The initiator and target emulators feature easy-to-use logic control and protocol-specific command and frame definition. Engineers can easily use the emulators to test command support and error-handling features of their device throughout the design bring-up process. The initiator and target emulators also support Serial ATA protocol compliance testing.
Sierra Error Injector (Jammer)
Building on the capabilities of the industry's first SAS/SATA error injection system, the InFusion™, are Sierra's SAS InFusion 6G™ and SATA InFusion 6G™. These solutions allow you to inject errors and modify traffic in order to verify real-world fault handling. While sitting in the data path on a live system, they can programmatically alter or corrupt traffic. The InFusion 6G solution is the ideal tool for stress testing systems while running real traffic and actual workloads.

The Sierra InFusion 6G traffic modifier is designed to verify recovery characteristics within a sub-system. In just minutes, an easy-to-use pop up menu interface allows you to create test scenarios. You can change any field, within any frame, as the data moves across the bus. Any primitive or data pattern can be intercepted and changed to a different pattern you specify. This allows for unprecedented corner case and protocol level error injection for SAS and SATA traffic.
Powerful Error Injection and Traffic Modification Abilities
The Sierra InFusion 6G system on the M6-4 platform supports up to four SAS or SATA links (on the M6-2 platform, up to 2 links are supported), and monitors traffic from both directions. Once the Sierra InFusion system has been added to a SAS or SATA link, it automatically passes the boot up sequence and preserves protocol handshaking between devices. It silently monitors the line while transmitting a faithful copy of the original data stream. The system will wait for a specific time interval or count a particular event that you designate before it begins modifying frames or injecting errors. Sierra InFusion can be configured to send a single error, multiple errors, or random errors.

When changing fields within a frame, the Sierra InFusion 6G traffic modifier will preserve the outbound frame structure, including recalculating the CRC if needed. The response transmitted from the device-under-test will pass through the Sierra system, without modification. This allows true end-to-end system testing. The Sierra InFusion 6G software will maintain a log that contains a summary of the exchange.
Easy and Versatile to Use
The Sierra InFusion 6G software was designed to modify existing traffic between an initiator and a target, which better reflects real world operating conditions compared to script based simulations. Test scenarios are independent of hardware setup and rarely need to be tuned for different configurations. Firmware or components in the system-under-test can be modified when needed, and then re-verified using the Sierra InFusion system.

Sophisticated error injection strategies are now possible using the dual sequencers with up to 256 sequential wait states per sequence. Each state can be configured to check for different conditions or inject different errors before branching to the next state. Looping allows the error injection sequence to repeat at specific intervals. Each sequential state can also include timers and counters to better isolate specific link conditions.

A Comprehensive Solution for SAS and SATA

LeCroy's SAS and SATA solutions provide you with advanced features necessary to ease the development and deployment of SAS and SATA devices. By combining the functionality and power of a Sierra SAS/SATA Analysis, Traffic Generator, Initiator Emulator, Target Emulator, and InFusion Error Injector, you have a complete system that gives you the most in-depth analysis, testing, and validation available for SAS and SATA.

Let LeCroy's Serial Data Solutions peel back the layers of SAS and SATA to solve your test and verification challenges.
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