IBM SYSTEM STORAGE EXP3000 - INTEROPERABILITY MATRIX 10-19-2010, Manual, Page: 18 / 64

The major CRUs in the EXP3000 are SAS or SATA hard disk drives, ESMs, and
power supplies. See “Replaceable EXP3000 components” on page 25.
v Fault indicators
All CRUs have fault or status light emitting diodes (LEDs) to indicate hardware
failures.
v
Redundant cooling and power capabilities
The EXP3000 uses a dual ac input power system. This means that both power
switches must be turned on for redundant operation. The redundant cooling of
the fans enables continued operation if one fan fails. The EXP3000 comes with
two 530-watt hot-swap power supplies, which provide redundant power for all
EXP3000 configurations. If a problem occurs with one of the power supplies, the
other power supply can meet the power requirements.
Major components of the EXP3000
Orange on a component or label indicates that the component can be hot-swapped.
You can install or remove a hot-swap component while the EXP3000 is running. For
information about installing hot-swap components, see Chapter 4, “Replacing
components,” on page 25.
Blue on components and labels indicates touch points, where you can grip a
component, move a latch, and so on.
The following illustrations show the major components of the EXP3000.
Front view
Hot-swap hard disk drive
Filler panel
System Storage
Bezels
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System Storage EXP3000: Installation, User’s, and Maintenance Guide