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IBM® Netfinity® EXP300 Installation and User’s Guide
Filler panel
Expansion units shipped without a full set of drives (14) contain filler panels
in the unused drive bays. Before installing new drives, you must remove the
filler panels and save them for later use. Each of the 14 bays must always
contain either a filler panel or a drive CRU.
Drive bays
There are 14 drive bays that contain either a drive CRU or a filler panel.
Latch
This multipurpose blue latch releases or locks the drive CRU in place.
Tray handle
You can use this multipurpose handle to insert or remove a drive CRU.
Fault LED (amber)
Each drive CRU has a fault LED. When lit, this amber LED indicates a drive
failure. When flashing, this amber LED indicates that a drive Identify or
Rebuild is in progress.
Activity LED (green)
Each drive CRU has an activity LED. When flashing, this green LED indicates
drive activity.
Drive CRU
You can install up to 14 hot-swap drive CRUs in the expansion unit. Each
drive CRU consists of a slim hard disk drive and tray.
Rear controls, indicators, and connectors
Two hot-swap power supplies with built-in fans and two environmental services
monitor (ESM) boards are accessible from the back of the expansion unit. These
components contain several user indicators and connectors.
Power-supply controls, indicators, and connectors
The following is a list of the controls, indicators, and connectors at back of the EXP300
expansion unit. A description of each item is included:
Thumbscrews
Loosen the thumbscrews to remove or install a power supply.
AC power connector
The power cord for the power supply connects here.
Power-supply/Fan CRU
The two hot-swap power supplies with built-in fans are located on the back of
the expansion unit.
0 1
2
3
45
6
7
8
9
Thumbscrews
Thumbscrews
AC power connector
AC power connector
Power
supply/Fan CRU
Power
supply/Fan CRU
AC power LED (green)
DC power LED (green)
Fault LED (amber)
Power
on/off
switch
Power
on/off
switch
Handle
Handle
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