The controller chassis consists of a controller board, front-end module, back-end module, fabric-acceleration module, power supply, and cache flash memory. Controllers are storage system components that cache and manage data, and provide hosts with a coherent, virtualized view of the system. A controller chassis contains two nodes with a 4U controller each, making the chassis 8U high. A storage system can contain 2 to 6 nodes, depending on the storage system model.
The compression accelerator module, which includes the compression accelerator and a fan, is a hardware component for the VSP 5200 and VSP 5600. The compression accelerator performs compression for these models instead of the storage system controllers, resulting in improved performance for the controllers.
| Number | Item | Description |
|---|---|---|
| 1 | POWER LED |
Green: Storage system is powered on. Amber: Storage system is receiving power. |
| 2 | READY LED |
Green: Normal operation. |
| 3 | WARNING LED |
Off: Normal operation. Amber: Component requires maintenance. Blink: Failure requires maintenance. Note: When System Option Mode 1097 is set to ON, the WARNING LED does not blink, even if the following failure service information messages (SIM) are issued: 452xxx, 462xxx, 3077xx, 4100xx, and 410100. LED might turn off during user maintenance. |
| 4 | ALARM LED |
Off: Normal operation. Red: Processor failure (system might be down). For assistance, contact customer support: https://support.hitachivantara.com/en_us/contact-us.html. |
| 5 | POWER ON/OFF (main switch) |
Powers the storage system. |
| Number | Item | Description |
|---|---|---|
| 1 | Controllers |
Controller 1 (bottom) and Controller 2 (top). |
| 2 | Backup module | N/A |
| 3 | BACKUP LED |
Green: Power restoration in progress following power outage. Fast blink green: Restoring. Slow blink green: Restoring, or sequential shutdown in progress. |
| 4 | Cache flash memory | N/A |
| 5 | ALM LED (for cache flash memory) |
Red: Cache flash memory can be removed. |
| 6 |
CTL ALM LED |
Red: Controller can be removed. Blink red: Failure with the power supply unit of the controller. Amber: LAN reset switch was pressed. |
| 7 |
LAN-RST switch |
Use only when instructed by customer support. |
| 8 |
STATUS LED (for BKMF) |
Green: Charging of the battery in the backup module is complete. Red: Backup module can be removed. Blink red one time: Main battery failure. Blink red two times: Backup battery failure. Blink red three times: Both batteries failed or preventive maintenance replacement of batteries can run. Off: Battery is not mounted, battery-mounting failure occurred, or firmware is being upgraded. Off is normal status for configurations without batteries. |
| 9 |
POWER ON/OFF (main switch) |
Powers the storage system. |
| 10 |
POWER, READY, WARNING, and ALARM LEDs |
Note: When System Option Mode 1097 is set to ON, the WARNING LED does not blink, even if the following failure service information messages (SIM) are issued: 452xxx, 462xxx, 3077xx, 4100xx, and 410100. |
| Number | Item |
|---|---|
| 1 | Power supply unit |
| 2 | Front-end module |
| 3 | LAN blade |
| 4 | Fabric-acceleration module |
| 5 | Back-end module |
| Number | Item | Description |
|---|---|---|
| 1 | ALM / RDY LED | Red: Power supply unit can be replaced. |
| 2 | RDY LED | Green: Normal operation. |