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Component identification 94
LED3 pattern LED4 pattern Interpretation
—
One blink per
second
The battery pack is below the minimum charge level and is being
charged. Features that require a battery (such as write cache, capacity
expansion, stripe size migration, and RAID migration) are temporarily
unavailable until charging is complete. The recharge process takes
between 15 minutes and two hours, depending on the initial capacity
of the battery.
—
Steady glow The battery pack is fully charged, and posted write data is stored in the
cache.
—
Off The battery pack is fully charged, and there is no posted write data in
the cache.
One blink per
second
One blink per
second
An alternating green and amber blink pattern indicates that the cache
microcontroller is executing from within its boot loader and receiving
new flash code from the host controller.
Steady glow
— There is a short circuit across the battery terminals or within the battery
pack. BBWC features are disabled until the battery pack is replaced.
The life expectancy of a battery pack is typically more than three
years.
One blink per
second
— There is an open circuit across the battery terminals or within the
battery pack. BBWC features are disabled until the battery pack is
replaced. The life expectancy of a battery pack is typically more than
three years.
FBWC module LEDs
The FBWC module has two single-color LEDs (green and amber). The LEDs are duplicated on the reverse side
of the cache module to facilitate status viewing.
Green LED 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.