HP Smart Array Advanced Pack Software manual Fbwc module LEDs P222, P420, P421, P721m, P822

1 Green LED	2 Amber LED	Interpretation
Off	On	A backup is in progress.
Flashing (1 Hz)	On	A restore is in progress.
Flashing (1 Hz)	Off	The capacitor pack is charging.
On	Off	The capacitor pack has completed charging.
Flashing (2 Hz)	Flashing (2 Hz)	One of the following conditions exists:
Alternating with	Alternating with	• The charging process has timed out.
amber LED	green LED	• The capacitor pack is not connected.
On	On	The flash code image failed to load.
Off	Off	The flash code is corrupt.

FBWC module LEDs (P222, P420, P421, P721m, P822)

The FBWC module has three single-color LEDs (one amber and two green). The LEDs are duplicated on the reverse side of the cache module to facilitate status viewing.

1 - Amber	2 - Green	3 - Green	Interpretation
Off	Off	Off	The cache module is not powered.
Off	Flashing 0.5 Hz	Flashing 0.5 Hz	The cache microcontroller is executing from within its
			boot loader and receiving new flash code from the host
			controller.
Off	Flashing 1 Hz	Flashing 1 Hz	The cache module is powering up, and the capacitor
			pack is charging.
Off	Off	Flashing 1 Hz	The cache module is idle, and the capacitor pack is
			charging.
Off	Off	On	The cache module is idle, and the capacitor pack is
			charged.
Off	On	On	The cache module is idle, the capacitor pack is charged,
			and the cache contains data that has not yet been
			written to the drives.
Off	Flashing 1 Hz	Off	A backup is in progress.
Off	On	Off	The current backup is complete with no errors.
Flashing 1 Hz	Flashing 1 Hz	Off	The current backup failed, and data has been lost.
Flashing 1 Hz	Flashing 1 Hz	On	A power error occurred during the previous or current
			boot. Data may be corrupt.
			Component identification 27