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Component identification 100
LED3 pattern LED4 pattern Interpretation
Off
Flashing (1 Hz) 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 unavailable
temporarily until charging is complete. The recharge process takes
between 15 minutes and 2 hours, depending on the initial capacity of
the battery.
Off
On The battery pack is fully charged, and posted write data is stored in the
cache.
Off
Off The battery pack is fully charged, and no posted write data exists in
the cache.
Flashing (1 Hz)
Flashing (1 Hz) An alternating green and amber flashing pattern indicates that the
cache microcontroller is executing from within its boot loader and
receiving new flash code from the host controller.
On
— A short circuit exists 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 3 years.
Flashing (1 Hz)
— An open circuit exists 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 3 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.
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)
Alternating with
amber LED
Flashing (2 Hz)
Alternating with
green LED
One of the following conditions exists:
•
The charging process has timed out.
•
The capacitor pack is not connected.
On
On The flash code image failed to load.