Cache module LEDs
P440ar cache module LEDs
Cache module LEDs (For standup Smart Array controllers)
The cache module has three single-color LEDs (one amber and two green). The LEDs are duplicated on the reverse side of the cache module to facilitate status viewing.
| 1 - Amber | 2 - Green | 3 - Green | Interpretation |
|---|---|---|---|
| Off | Off | Off | The cache module is not powered. |
| Off | Flashing once every 2 seconds | Flashing once every 2 seconds | The cache microcontroller is executing from within its boot loader and receiving new flash code from the host controller. |
| Off | Flashing once per second | Flashing once per second | The cache module is powering up, and the battery is charging. |
| Off | Off | Flashing once per second | The cache module is idle, and the battery is charging. |
| Off | Off | On | The cache module is idle, and the battery is charged. |
| Off | On | On | The cache module is idle, the battery is charged, and the cache contains data that has not yet been written to the drives. |
| Off | Flashing once per second | Off | A backup of the DDR content on the cache module is in progress. |
| Off | On | Off | The current backup is complete with no errors. |
| Flashing once per second | Flashing once per second | Off | The current backup failed, and data has been lost. |
| Flashing once per second | Flashing once per second | On | A power error occurred during the previous or current boot. Data may be corrupt. |
| Flashing once per second | On | Off | An overtemperature condition exists. |
| Flashing twice per second | Flashing twice per second | Off | The battery is not connected to the system board. |
| Flashing twice per second | Flashing twice per second | On | The battery has been charging for 10 minutes, but has not reached sufficient charge to perform a full backup. |
| On | On | Off | The current backup is complete, but power fluctuations occurred during the backup. |
| On | On | On | The cache module microcontroller has failed. |