IBM 3531 manual Installing hot-swap drives, LED State Description, Hard disk drives

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:

LED	LED State	Description
Activity LED	Green/flashing	Flashes during
		read/write or inquiry
		operationstothedrive
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

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.

Drive CRU Filler panel

Activity LED Fault LED Latch Tray handle

18IBM Netfinity EXP300 - Type 3531 Hardware Maintenance Manual