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User Guide
2.2 IOM
Figure 16: Ultrastar Data102 IOM
Each IOM provides system data connectivity through 6 Mini-SAS HD ports, capable of four 12Gbps SAS
connections each. The IOMs are N+1 redundant, hot-swappable components. The IOMs are installed into
the central bay from the top of the Chassis and connect to the drive board. The baseboard completes the
connection to the Mini-SAS HD ports, which extend out the rear of the enclosure. Each IOM contains a
primary and two SAS expander chips, and an out-of-band management (OOBM) chip that connects to the
management port on the rear of the enclosure.
2.2.1 IOM Specifications
Specification
Connector Type
Number per Enclosure
Part Number
Hot Swappable?
FRU or CRU?
Weight
7.
Listed weight does not include packaging/shipping materials.
Value
x6 HD Mini-SAS
(connected externally at the rear of the enclosure)
2 (SAS) / 1 (SATA)
1EX2201
Yes
CRU
1.27 kg / 2.8 lbs
2. Components
2.2 IOM
7
34
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