IBM System Storage DS4000, Hardware Maintenance Manual

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Note: The graphics used in this document are for illustrative purposes only. The
appearance of the actual device may differ from the graphic.
Power-on LED
When on, this green light indicates that the unit has good dc power.
The DS4300 single-controller storage server (model 6LU and 6LX) has a
single power supply therefore; when the power supply fails, the
General-system-error LED and the Power-on LED are not lit.
General-system-error LED
When on, this amber LED indicates that the storage server has a fault, such
as in a power supply, fan unit, or hard disk drive.
The DS4300 single-controller storage server (model 6LU and 6LX) has a
single power supply therefore; when the power supply fails, the
General-system-error LED and the Power-on LED are not lit.
Note: If the General-system-error LED is on continuously (not flashing),
there is a problem with the storage server. Use the storage
management software to diagnose and repair the problem. For more
information, see “Checking the LEDs” on page 71.
Locator LED
When on, this blue light indicates the storage management software is
locating the server.
Hot-swap drive CRU
You can install up to 14 hot-swap drive customer replaceable units (CRUs) in
the storage server. Each drive CRU consists of a hard disk drive and tray.
Filler panel
The storage server comes without drives installed and contains filler panels
in the unused drive bays. Before installing new drives, you must remove
the filler panels and save them. Each of the 14 bays must always contain
either a filler panel or a drive FRU. Each filler panel contains a filler piece
for use with a slim drive.
Drive activity LED
Each drive CRU has a green Drive activity LED. When flashing, this green
LED indicates drive activity. When on continuously, this green LED
indicates that the drive is properly installed.
Hot-swap
drive CRU
Tray handle
Latch
Drive activity LED
Drive fault LED
Power-on LED
General-system-
error LED
Locator LED
Figure 46. DS4300 storage server front controls and components
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IBM TotalStorage DS4000: Hardware Maintenance Manual