Serial Attached SCSI (SAS) Pod for Bus Doctor Analyzer

The Serial Attached SCSI Pod turns the Bus Doctor into a full-featured protocol analyzer, with the depth, ease-of-use, protocol decoding and statistics that are needed by software and systems testers. It also provides the features needed by hardware engineers including multi-level triggering, filtering, state configuration post-capture filtering of Serial Attached SCSI packets.






Serial Attached SCSI (SAS) Displays
At the Command level, the Serial Attached SCSI analyzer provides a big-picture view for testers who are troubleshooting system-level or application-level issues. You can easily identify the direction of each command, the Information Unit or type of out-of-band (OOB) signal, description, and time stamp.

The State display provides decoding of each Double-word transfer for users who need to monitor Serial Attached SCSI software, device drivers, or firmware. If you want to see the Data Byte Name and value, scrambled data, 10b data patterns, and running disparity for each event, just mouse-over the data column and a pop-up window will show you the information.

The analyzer allows for examining captured data at the Command, State, and Signal levels. The different display formats can be individually displayed or simultaneously displayed. When displayed simultaneously, each display can be automatically synchronized with the others, or used independently. A histogram provides a graphical summary of trace activity for the entire trace and makes it easy to point and click to any position within the trace.



Serial Attached SCSI (SAS) Capturing

The Serial Attached SCSI analyzer provides a variety of capture configurations. Each of these options can be enabled or disabled as needed:

* Timing Mode (Store all transitions)
* State Mode (selectible for both directions of traffic)
o Capture All Valid Frames
o Filter Primitives including SYNCs and ALIGNs
o Filter Data after CONT
o Filter Errors
o Filter Out of Band (OOB) signals
o Filter Idle data

* Custom State Modes can also be created.

The BusDoctor's Capture Engine pushes protocol recording to new limits with the following features:

- Transitional Timestamping
- Bandwidth - 4.5 Gbytes/sec
- Depth - Stores up to 4 Gbytes
- Segmentable Trace Buffer





Serial Attached SCSI (SAS) Triggering
The Serial Attached SCSI Analyzer provides you high-level trigger configurations for most common trigger scenarios. The high-level trigger dialogs provide powerful capabilities to trigger on the Serial Attached SCSI Frame types, tasks, SCSI commands, primitives, and out-of-band (OOB) signals from a list without memorizing codes or positions. You may easily trigger on a Serial ATA (SATA) count, LBA, command, status, feature or FIS types. You may also trigger on hardward and software error. You may create custom triggers.

Triggering is used to stop the trace when a specific event or sequence of events occur. The analyzer also provides for stopping when the buffer is full, or looping endlessly until the user manually stops the trace. High-Level triggering options are provided for each bus. The User can also create custom triggers using the powerful Trigger Sequencer.





Serial Attached SCSI (SAS) Analyzer Trace Filtering
The Serial ATA Analyzer allows you to filter out a portion of the data to conserve buffer space. Users can also create and save custom pre-capture filters. After capturing, the Show/Hide controls for the Command and State Listings provide you with a variety of criteria for selection of portions of the trace to display.





Serial Attached SCSI (SAS) Statistics
The Real-Time Monitor can be easily configured so you can see interesting and usable bus statistics while taking a trace or at any other time.

Dedicated hardware is provided for counting events. Software processes this data providing simple, or ratios of events per time or other events such as Transfers per Second, Transfers per Command, or Data Transfers per Error. These ratios are shown as Current Values and Peak Values, providing a summary of the changes over time.



Protocols, Standards, & Speed

Protocols & Standards:

* Serial Attached SCSI (SAS) revision 3.0
* SCSI primary commands: SPC, SPC-2, SPC-3
* SCSI-3 block commands (SBC, SBC-2)
* SCSI-3 Multimedia commands (MMC)
* Serial ATA (SATA) 1.0

Speeds:
* 1x = 3.0Gb/sec



Since 1997, Gillaspy Associates has built a solid reputation for developing strong relationships with our customers by providing quality solutions and ongoing support.