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Keysight
SAS (Serial Attached SCSI) and
SATA (Serial ATA) Protocol Analyzers
Data Sheet
U3055A/U3056A Pro II 12G SAS analyzer
U3052C/U3057C Pro SAS/SATA analyzer
U3051C SAS/SATA analyzer U3053C SAS/SATA jammer
02 | Keysight | SAS (Serial Attached SCSI) and SATA (Serial ATA) Protocol Analyzers - Data Sheet
For today's SAS and SATA developers and integrators, getting to the root of a
problem can be especially difficult when there isn't an obvious trigger condition.
Troubleshooting is further complicated by increasing storage capacities, data
rates, and protocol complexity. Integrators and developers need faster and deep-
er analyzers to keep up. Traditionally, those needing to capture large amounts
of traffic have been faced with limited trace buffers, long waits to view the data,
slow searches, and slow saving. SerialTek has overcome the old limitations
with the BusXpert Series of SAS/SATA Analyzers. The BusXpert uses advanced
technologies such as the industry's first PCI Express x4 uplink to the host (550
MB/s), up to 72 GB of buffer (Pro II), Hardware Accelerated Gigabit Ethernet,
pre-indexed and compressed trace data, multiple analysis processors, and
instant display of the captured data.
The BusXpert also features easy to use triggering, pre/post-filtering, textual
search and sequence search, and many different displays of the captured traffic.
It is available in a variety of configurations to fit specific needs for buffer size,
port-count, protocols, and budget. The BusXpert breaks free of past analyzer
limitations and lets users spend more time on development and debug efforts.
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 hard-
ware 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.
03 | Keysight | SAS (Serial Attached SCSI) and SATA (Serial ATA) Protocol Analyzers - Data Sheet
Inventive Software
BusXpert has a new and revolutionary Java-based, portable user interface with
multiple docking views and easy-to-use portable API for automation. InstaView and
PreIndexing innovations allow viewing of any size trace and lets designers truly use
the analyzer in under five seconds!
Outstanding features that make SAS/SATA analysis a snap include