HP AA988A - Modular Smart Array Storage Controller SCSI User Manual page 14

Figure 1-1 shows the LEDs on the front of a controller enclosure.
Enclosure ID
Drive modules are numbered by column top to bottom: 0–2, 3–5, 6–8, 9–11
Figure 1-1 Controller Enclosure LEDs (Front View)
Table 1-2 describes the LEDs on the front of a controller. For information about
troubleshooting the system using LEDs, see "Troubleshooting" on page 53.
Table 1-2 Controller LEDs (Front)
LED Color
Enclosure ID Green
UID Blue
(Unit
Identification)
Fault ID Amber
Heartbeat Green
14 HP StorageWorks 2012sa Modular Smart Array user guide • May 2008
Drive module LEDs (top to bottom)
Fault/UID
Online/activity
Operating
State Description
On Shows the enclosure ID, which enables you to correlate an
enclosure with logical views presented by management
software. The enclosure ID for a controller enclosure is zero
(0); the enclosure ID for an attached drive enclosure is
nonzero.
On Identified.
Off Not identified.
Off No fault condition exists.
On Fault condition exists. The event has been acknowledged
but the problem needs attention. Service action is required.
On The enclosure is powered on with at least one power and
cooling module operating normally.
Off Both power and cooling modules are off; the system is
powered off.
Status LEDs (top to bottom):
UID
Fault ID
Heartbeat