18 IBM Netfinity EXP300 - Type 3531 Hardware Maintenance Manual
Attention: If you re-install a drive in the wrong bay, you could lose data.
Drive LEDs Each drive bezel has two LEDs, which indicate the status for that
particular drive. The drive LED states and descriptions are as follows:
Filler panel
Expansion units are shipped without a full set of drives (14). They contain
filler panels in the unused drive bays. Before installing new drives, you must
remove the filler panels, which should be saved. Each of the 14 bays must
always contain either a filler panel or a drive CRU.
Hard disk drives
You can install only slim hot-swap drive CRUs in the EXP300 expansion unit.
Installing hot-swap drives
Use the following procedure to install drives in the expansion unit. You can install
additional drives while the expansion unit is turned on.
Note: If you are replacing a drive, see “Replacing hot-swap drives” on page 20.
1. Read the instructions that come with the drive CRU.
2. Check for fault LEDs. If any amber LEDs are lit, refer to “Symptom-to-FRU
index” on page 7.
LED LED State Description
Activity LED Green/flashing Flashes during
read/write or inquiry
o pe ra tio ns t o t he dr iv e
Fault LED Amber/flashing Flashes to indicate a
drive rebuild is under
way, or that a drive has
been identified by
software
Fault LED Amber On On to indicate a drive
failure
Drive CRU
Filler panel
Tray handle
Latch
Fault LED
Activity LED
