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Chapter 1: Introduction
Figure 1-8. Drawer Architectural Diagram
Drawer Architectural Diagram
The Storage Server SSG-640SP-DE2CR60 contains four Interposer positions for expander
modules, labelled A, B, C, and D. This interposer design allows each row of 15 drive bays
to be connected via foldable SAS cables to a midplane attached to both motherboards.
The primary node accesses all 60 drive bays via the 2nd and 4th row expanders while the
secondary node accesses all 60 drive bays via the 1st and 3rd row expanders.
Passive Mid-plane
X12DSC-6
Motherboards
Hot-serviceable
Expanders
Passive Expander
Interposer
Passive SAS3 Device
Backplanes (15 devices each)
SAS3 Cables
B
C
D
A