Column Control DTX

SAS (Serial Attached SCSI) and SATA (Serial ATA) Protocol Analyzers

データシート

Hardware Innovations

The BusXpert also features a Native PHY, fast data Re-Lock, 2-ns timestamp resolution, Eye-opener front-end, and tunable RX/TX signaling. The Native PHY, along with SerialTek's proprietary re-lock implementation, allows the BusXpert to achieve the industry's fastest PLL lock-time, resulting in extremely accurate capture during speed negotiation, power management, and SSC transmissions. A 2-ns timestamp resolution allows for extra detailed timing information. This is especially useful with SAS wide links and is also helpful in determining if timing violations occurred during capture. This 2-ns timestamp resolution is three times more accurate than found in other competing solu­tions. The tunable RX/TX and eye-opener front-end allow the BusXpert's signal characteristics to be adjusted on the fly.

Pre-indexing enables fast displaying of, searching for, and hiding of the captured bus activity. Trace-processing works with pre-indexing to allow for quicker display of transactions, decreasing the time needed for searching and allowing saved traces to perform just as fast as traces stored on the BusXpert. Trace formatting enables efficient use of the host system’s disk space, allowing more traces to be saved without the extra data found in other trace formats. Compression is used to cut down on the space needed for repetitive SAS and SATA link layer traffic and also to utilize the pipe connection to the host system more effectively.

BusXpert's hardware was designed to deliver trace data at speeds of up to 550 MB/s, capturing up to 72 GB of bus activity and ensuring the data captured is represented as accurately as it appears on the bus. To take advantage of the performance offered by the hardware, BusXpert's software was designed from the ground up to fully utilize the fast pipes and large buffers. Existing methods of dealing with the upload and display of trace data were not efficient enough and led to some key innovations found only in the BusXpert software: Pre-indexing, trace-processing, trace-formatting, and compression.

The BusXpert PRO is the only SAS analyzer and SATA analyzer to offer hard­ware accelerated gigabit ethernet and PCI Express x4 for the host interface. This enables fast uploads of even the largest capture files—it can be configured for up to 72 GB of data capture.

Outstanding features that make SAS/SATA analysis a snap include

  • Multiple capture recording: Allows the analyzer to re-arm itself after a trigger condition has been met and start a new recording for up to 256 consecutive segments.
  • ATAPI support: Software fully decodes ATAPI commands.
  • Live counters and monitors: Allow the user to independently count user-specified events, such as frame errors, and take a trace simultaneously.
  • InstaSearch technology: Uses the latest in MicroBlaze microprocessor technology to search through large trace buffers in seconds.
  • Strong compression: Allows the user to maximize buffer space by compressing primitives even when an ALIGN or IDLE are between each occurrence.
  • Triggering improvements: Users can now specify more than one trigger action in each "Wait for" state.
  • Additional command decoding: Deeper decodes of popular commands such as Identify Device and Inquiry.
  • Overlapped command display: In response to customer enhancement requests, users can now monitor the number of commands and responses while a single command is outstanding.
  • Live performance monitoring: Measure IOPS per second, Read/Write/Total MB/s per each link for comparison.

Searching for data

Easily search for specific frames, primitives, addresses or other events with the Quick Search and Advanced Search functions. Quick Search is a text search that fills in the rest of the search term as the user starts typing. Advanced Search provides a way to search for sequences of events, either within a frame, or across multiple frames or events. It is identical to the Trigger Sequencer in appearance.

The ‘Protocol view,’ ‘Transaction View,’ and ‘Spreadsheet view’ show different levels of the same data and can be synchronized by double-clicking in any of the views. All of the views can be easily configured to display anywhere in the workspace. Hide, dock, pin, and resize to the desired configuration and the software will retain the last known settings. Each view can be exported to CSV and XML formats, and the Frame ‘Details’ view will also export to HTML. All command decodes are XML-based and can easily be edited or created for unique or vendor-specific commands.

The intuitive interface used for Triggering is also used with the Searching and Filtering functions allow for simplicity and ease of use. Any created and saved events are available to use in each of the interfaces.

BusXpert’s software is up-to-date with the latest specifications for SAS2 and SATA Revision 3.0. It is also constantly updated with new features driven by market demands and customer requests.

The SerialTek BusXpert Pro II is our flagship SAS and SATA analyzer. It features the HD Mini-SAS connectors for 4-port connections, the industry's largest buffer up to 72 GB and is small enough to easily transport around the lab or in the field. Multiple units can be cascaded together for recording multiple ports simultaneously and viewed in the same GUI.

Key features:

  • Enhanced gigabit ethernet > 70 MB/s
  • 500 picosecond timestamp resolution
  • Eye-opener front end
  • Tunable RX/TX signaling
  • Cascadeable up to 4 BusXpert Pro platforms
  • Supports 1.5/3.0/6.0/12.0 (SAS Only) Gbps
  • Deep triggering and filtering
  • Trace buffer up to 72 GB

The SerialTek BusXpert Pro is the workhorse for 4 port analysis of SAS and SATA. It features the optional Mini-SAS connectors for 4-port connections, the industry's largest buffer up to 36 GB and is small enough to easily transport around the lab or in the field. Multiple units can be cascaded together for recording multiple ports simultaneously and viewed in the same GUI.

Key features:

  • PCI express > 550 MB/s
  • Enhanced gigabit ethernet > 70 MB/s
  • Native PHY
  • Fast data re-lock
  • 2 ns timestamp resolution
  • Eye-opener front end
  • Tunable RX/TX signaling
  • Cascadeable up to 4 BusXpert Pro platforms
  • Available with either mini-SAS or SATA 7-pin connectors
  • Supports 1.5/3.0/6.0 Gbps
  • Deep trigger and filter
  • Trace buffer up to 36 GB

The BusXpert Micro Series SAS and SATA analyzer has a very portable form-factor, making it a preferred choice for those developers needing a compact platform with minimal noise and size. Its small dimensions also make it easy to take along in the field and to move it from bench to bench in the lab.

The analyzer comes with several status LEDs for a quick visual reference of what is occurring on the bus. It also supports trigger in/out for those needing to trigger a scope or logic analyzer. The BusXpert Micro Series is our most capable SAS/SATA analyzer for complete SAS and SATA protocol analysis. It features the industry’s largest buffer, offering options from 2 GB up to 9 GB. It also has the industry’s most in-depth triggering, with up to three simultaneous sequenc­ers. Each sequencer can contain up to 16 states with timers, counters, and the ability to jump anywhere within the sequence. The BusXpert GUI also makes it easier for developers to create triggers and understand what is happening on the bus, and it displays the data in a meaningful format.

Key features:

  • PCI express > 550 MB/s
  • Enhanced gigabit ethernet > 70 MB/s
  • Native PHY
  • Fast data re-lock
  • 2 ns timestamp resolution
  • Eye-opener front end
  • Tunable RX/TX signaling
  • Cascade-able up to 2 BusXpert Micro Systems
  • SATA 7-pin connectors
  • 1-port or 2-port (full duplex links)
  • 5 V/12 V controllable external power connector
  • License for SAS/SATA or SATA-only
  • Software configurable for 3.0/6.0 Gbps
  • Deep trigger and filter
  • Trace buffer up to 9 GB

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