The controller chassis contains the following components:
- Controller boards (CTLs, also called DKCs.)
- Front-end modules (FEMs), also called channel boards (CHBs)
- Back-end modules (BEMs), also called disk boards (DKBs)
- Power supply (PS)Note: The PSUT power supply has a Titanium efficiency rating.
- Backup fan module (BKMF)
- Accelerator FAN Module (ACFL)
The CTLs contain the cache memory (CM) and cache flash memory (CFM) for the storage system. The VSP E1090 supports up to 1,024 GiB of cache memory.
| Number | Item | Description |
|---|---|---|
| 1 | LED (POWER, READY, WARNING, ALARM) | Status LEDs for the controller chassis. |
| 2 | POWER ON/OFF (main switch) |
Switch that controls power to the storage system. |
| 3 | Lock | Use to lock and unlock front bezel. |
| 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 (SOM) 1097 is set to ON, the WARNING LED does not blink, even if the following failure service information messages (SIMs) 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. |
| 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 (SOM) 1097 is set to ON, the WARNING LED does not blink, even if the following failure service information messages (SIMs) are issued: 452xxx, 462xxx, 3077xx, 4100xx, and 410100. |
| Number | Item |
|---|---|
| 1 | Power supply |
| 2 | Channel board module |
| 3 | LAN board |
| 4 | Disk board module |
| Number | Item | Description |
|---|---|---|
| 1 | ALM / RDY LED | Red: Power supply unit can be replaced. |
| 2 | RDY LED | Green: Normal operation. |