LEDs
Overview
LED colors are used consistently throughout the enclosure and its components for indicating status:
- Green
- Good or positive indication
- Flashing green/amber
- Non-critical condition
- Amber
- Critical fault
580W PCM LEDs
Under normal conditions the PCM OK LEDs will be a constant green. When a fault occurs, the colors of the LEDs will be as shown in the following table. See also Figure 2 .
| PCM OK(Green) | Fan Fail (Amber) | AC Fail (Amber) | DC Fail (Amber) | Status |
| Off | Off | Off | Off | No AC on any PCM |
| Off | Off | On | On | No AC on this PCM only |
| On | Off | Off | Off | AC present; PCM working correctly |
| On | Off | Off | On | PCM fan speed is outside acceptable limits |
| Off | On | Off | Off | PCM fan has failed |
| Off | On | On | On | PCM fault (over temperature, over voltage, over current) |
| Flashing | Off | Off | Off | Standby mode |
| Off | Flashing | Flashing | Flashing | PCM firmware download in progress |
Ops panel LEDs
The front panel displays the aggregated status of all the modules. The enclosure status LEDs located on the front panel are labeled in Figure 1 and they are individually described in the narrative subsections that follow the table.
| System Power (Green/Amber) | Module Fault (Amber) | Logical Fault (Amber) | LED Display | Associated LEDs/Alarms | Status |
|---|---|---|---|---|---|
| On | Off | Off | 5V standby power present, overall power failed or switched off | ||
| On | On | On | On | Ops panel power on (5s), test state | |
| On | Off | Off | Power on, all functions good | ||
| On | On | PCM fault LEDs,fan fault LEDs | Any PCM fault, fan fault, over or under temperature | ||
| On | On | SBB module LEDs | Any SBB module fault | ||
| On | On | No module LEDs | Enclosure logical fault | ||
| On | Flash | Module status LED on SBB module | Unknown(invalid or mixed) SBB module type installed, I2C bus failure (inter-SBB communications), I/O VPD configuration error | ||
| On | Flash | PCM fault LEDs, fan fault LEDs | Unknown(invalid or mixed) PCM type installed or I2C bus failure (PCM comms) | ||
| On | On | Array in failed or degraded state | Drive failure has occurred causing loss of availability or redundancy | ||
| On | Flash | Array in impacted state | Arrays operating background function | ||
| On | Flash | SES state S1 | Enclosure ID setting different frominitial power-on setting | ||
| Flash | Enclosure identification or invalid ID selected |
Disk drive carrier module LEDs
Disk drive status is monitored by a blue LED and an amber LED mounted on the front of each drive
carrier module, as shown in the figures below. The drive module LED conditions are defined in the
table following the figure.
- In normal operation the green LED is on, and flickers as the drive operates.
- In normal operation the amber LED state is:
- Off if there is no drive present.
- Off as the drive operates.
- On if there is a drive fault.
| Drive LED (green) | Drive LED (amber) | Associated Ops Panel LED | Status |
|---|---|---|---|
| Off | Off | None | No drive installed |
| On/ Flashing | Off | None | Drive installed and operational |
| On | Flashing: 1s on/1s off | None | SES device identity set |
| On | On | Logical fault (amber) | SES device fault bit set |
| Off | On | Module fault (amber) | Power control circuit failure |
| On | Flashing: 3s on/1s off | Logical fault (amber) | SES device rebuild bit set |
I/O Module LEDs
I/O module LED states are shown in the following table.
| I/O Module OK (green) | I/O Module Fault (amber) | SAS Activity LED (green) | Status |
|---|---|---|---|
| On | Off | I/O module OK | |
| Off | On | I/O module fault. For replacement procedure see Replacing an I/O module | |
| Off | No external host port connection | ||
| On | External host port connection - no activity | ||
| Flashing | External host port connection - activity | ||
| Flashing | I/O module VPD error |