Component identification 22
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.
Hot-plug fans
CAUTION: To avoid damage to server components, fan blanks must be installed in fan bays
5 and 6 in a single-processor configuration.
The only two valid fan configurations are listed in the following table.
Configuration
Fan bay
1
Fan bay
2
Fan bay 3
Fan bay
4
Fan bay
5
Fan bay 6
1 processor Fan Fan Fan Fan Fan blank Fan blank
2 processors Fan Fan Fan Fan Fan Fan
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