LED3 pattern | LED4 pattern | Interpretation |
|
|
|
Off | Flashing (2 Hz) | The system is powered down, and the cache contains data that has not |
|
| yet been written to the drives. Restore system power as soon as |
|
| possible to prevent data loss. |
|
| Data preservation time is extended any time that 3.3 V auxiliary |
|
| power is available, as indicated by LED 2. In the absence of auxiliary |
|
| power, battery power alone preserves the data. A |
|
| battery can normally preserve data for at least 2 days. |
|
| The battery lifetime also depends on the cache module size. For more |
|
| information, see the controller QuickSpecs on the HP website |
|
| (http://www.hp.com). |
|
|
|
Off | Double flash, then | The cache microcontroller is waiting for the host controller to |
| pause | communicate. |
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. |
|
|
|
Component identification 29
