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StorageWorks Status Reporting

2.4 BBU Status

The LEDs shown in Figure 2–6 display the status of the BBU.

• The upper LED (green) is the BBU status LED.

• The lower LED (amber) is the charge status LED.

Figure 2–6 BBU LEDs

CHARGE

STATUS

(AMBER)

BBU STATUS

(GREEN)

CXO-3670A-PH

These LEDs are controlled by internal BBU signals. The BBU status LED has

three states: on, off, and ﬂashing. The charge status LED is either on or off. The

Table 2–5 deﬁnes the valid states for these LEDs.

Table 2–5 BBU Status LEDs

LED Status Indication

BBU Status (upper)

BBU Charge (lower)

Off

Normal status

BBU is fully charged and operational.

BBU Status (upper)

BBU Charge (lower)

Off

Normal status

BBU is charging.

BBU Status (upper)

BBU Charge (lower)

Flashing

Fault status

Power supply failure.

BBU is in use.

BBU Status (upper)

BBU Charge (lower)

Off

Fault status

Either power supply or BBU failure.

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Digital Equipment Corporation Storage Works Guide de l'utilisateur Page 30