Intel® Server Chassis SR1475 / Intel® Server System SR1475NH1-E
Revision 1.0
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3.3.2
SCSI Backplane Functional Architecture
This section provides a high-level description of the functionality distributed between the
architectural blocks of the SCSI backplane. The following figure shows the functional blocks of
the SCSI backplane.
Figure 23. SCSI Backplane Functional Diagram
3.3.2.1
Enclosure Management Controller
The SCSI backplane utilizes the features of the QLogic* GEM359 for enclosure management
which monitors various aspects of a storage enclosure. The chip provides in-band SAF-TE and
SES management through the SCSI interface. Also supported is the I2C connection to the
server board.
The GEM359 comes in a 144-pin low profile Quad Flat Pack package and operates from 3.3V
and an input clock frequency of 10MHz. It has general input and output pins that allow
customization, some of which are used for drive detection and power controller enable/disable
functionality.
Summary of Contents for SR1475
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