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Connecting an internal Mini-SAS to SATA
Fan-out cables
A mini-SAS to SATA fan out cable has a mini-SAS
connector (SFF-8087) on one end and four SATA
connectors on the other end. Plug the mini-SAS
connector into the appropriate 'Jn' connector on the
adapter. Plug each of the SATA connectors into the
drive backplane. The cable attached to each SATA
cable should have a number that indicates the
connection order within the mini-SAS connector. The
number on the cable indicates the order that the SATA
cable should be connected to drive slots on the
backplane. Consult the documentation for your
LED Control for Internal SAS Connectors
This section provides the instructions that define the
cable connections needed to exercise LED Control for
hard drive backplanes. This section applies to the
following models: R608; R60F; H608; and H60F.
These adapters have been designed to affect LED
Control functionality through an SGPIO interface or an
I2C interface. These interfaces require different cable
connections and those connections are specified in
this chapter.
Using SGPIO for LED Control
SGPIO with an internal mini-SAS to mini-
SAS cable
The signals for SGPIO are included within the Mini-
SAS connector located on the adapter. These signals
are routed to the hard drive backplane based upon the
cable used for the backplane connection. Consult the
documentation for your backplane to determine if it
supports SGPIO.
SGPIO with an internal Mini-SAS to SATA
Fan-out cables
Follow the instructions for a connection with internal
Mini-SAS to SATA Fan-out cables. The fan out end
30 ATTO Technology Inc. ATTO ExpressSAS Host & RAID Adapter Installation and Operation Manual
backplane to determine the relationship from the SATA
connector to drive slot.
Connecting an internal Mini-SAS to
internal Mini-SAS cables
A mini-SAS to mini-SAS cable has a mini-SAS (SFF-
8087) connector at each end of the cable. Plug one
end into the appropriate 'Jn' connector on the adapter.
Plug the other end into the appropriate connector on
the drive backplane. Consult the documentation for
your backplane to determine the relationship from the
Mini-SAS connector to drive slot.
should have an additional connector that is an 8 wire
connector. This connector must be connected to an
SGPIO header on the hard drive backplane. (See
Example 2) Consult the documentation for your
backplane to determine the relationship from the
SGPIO connector to the drive slots.
Note, the SGPIO sideband connector is not standard
and the connector must match the connector on the
backplane. Please see the backplane's and cable's
documentation for more details
Using SES-I2C for LED Control
The signals for LED Control via I
the I
C headers of the adapter. The signals are carried
2
on a 3 wire cable and connected to the hard drive
backplane. Consult the documentation for your
backplane to determine if it supports LED Control via
I
C.
2
In general an I
C cable is needed for each group of
2
four drives. However, there are hard drive backplanes
that have more drives per I
should be connected according to the table on the next
page.
C are generated at
2
C cable. The I
C cables
2
2
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