Iom Description; Iom Specifications - Western Digital Ultrastar Serv60+8 User Manual

User Guide

3.2 IOM Description

Figure 15: Overview Image
The IOM provides system data connectivity through 4 Mini-SAS HD ports each capable of four 12Gbps SAS
connections. The IOM is 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
The IOM contains a primary and two secondary SAS expander chips, and an out-of-band management
(OOBM) chip that connects to the management port on the rear of the enclosure.
3.2.1

IOM Specifications

Table 19: Specification Summary
Specification
Connector Type
Number per Enclosure
Part Number
Hot Swappable?
FRU or CRU?
Weight
Value
x4 HD Mini-SAS (connected externally at the rear of the
enclosure)
1
1EX1828
No
CRU
1.27 kg / 2.8 lbs
38
3 Component Overviews
3.2 IOM Description