BBU
BBU is a unit that integrates the BTU and BCU. After a power outage occurs, the BTU supplies power to save the cache data to the SSDs. The BCU performs the charge/discharge control for the BTU.
Figure: BBU
The states of LEDs are listed below.
LED name |
LED status |
Meaning |
|---|---|---|
BBU READY |
|
The BCU and BTU are in normal status. |
|
The BBU has a charge level of less than 90% and is currently charging, or the BBU is in the discharge standby state. |
|
BCU ALARM |
|
The BCU is in error status. |
BTU ALARM |
|
The BTU is in error status. |
|
The charge has been suspended due to the battery being in the high or low temperature warning state. |
(green)
(blinks green)
(amber)
(blinks amber)