Iom Description; Iom Specifications - Western Digital Ultrastar Data102 User Manual

User Guide
The chassis has a removable lid that encloses the internal system components and ensures proper airflow.
The drive bays are comprised of 16 sections that isolate the data storage drives from transmitting vibration
to one another. There is a long central bay that contains the enclosure's IOMs and the IOM fan. The front
of the chassis has a metal mesh cover and two handles that swing out from the chassis that are used to
extend the enclosure out of the rack when pulled. There are two rack ears at the front of the enclosure
that are used to secure the enclosure to the rack for shipping purposes. The rear of the chassis has two
housings to shroud and connect the four rear fans to the enclosure, and a center bay that houses the PSU
modules.
Warning:
support the weight of the Ultrastar Data102. Lifting the unit by the chassis handles or trying to
support the unit on the handles can cause them to fail. This can cause serious damage to the
unit or serious bodily harm to those handling the unit. Always team lift the chassis by gripping
the underside of the unit, and never try to lift a chassis that is filled with drives.
3.2 IOM Description
Figure 17: Overview Image
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 that extend out of the rear of the enclosure.
The 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.
3.2.1 IOM Specifications
Specification
Number per Enclosure
The handles on the front of the chassis are not intended to be used to
Connector Type x6 HD Mini-SAS (connected externally at the rear of the enclosure)
3. Component Overviews

3.2 IOM Description

Value
2
42