Front panel LEDs
Overview
The enclosure front panel displays several LEDs. The front panel displays the functions shown in the illustration below and listed in the table. See also Figure 1
| LED | Front panel functions (lower left corner of panel) | LED | Front panel functions (lower left corner of panel) |
|---|---|---|---|
| 1 | System Power LED (green) | 5 | Firmware Fault LED (amber) |
| 2 | ID LED (blue) | 6 | Module Fault LED – rear (amber) |
| 3 | Drive Activity LED (blinking green) | 7 | Fault LED – Top lid left (amber) |
| 4 | Fault LED – Top lid (amber) |
System power on/standby LED (green)
The LED illuminates green when system power is available. If the LED is off, either the system is powered off, or there is a power failure in the system. Troubleshooting to identify the root cause is necessary.
ID LED (blue)
When activated, the ID LED is blue, and is used to identify the storage system among others installed in the rack. This LED is normally off, and illuminates only during the identification process.
Drive activity LED (green)
The LED illuminates blinking-green to indicate disk drive activity. If the enclosure is in operation and the LED is not blinking, there is a possibility of a disk drive fault. This LED can be used together with other Fault LEDs to determine whether a drive fault condition exists.
Pull the chassis forward from its installed position within the rack. Remove the top lid and look for an amber LED on any of the disk drive modules or HS expander modules on the side-plane. Replace the faulty module per the applicable CRU replacement procedure.
Fault LED - top lid (amber)
The LED illuminates amber when experiencing a system hardware fault with a component accessible via the enclosure top panel. Amber display indicates that the top lid should be removed to locate the faulty component within the drive channel. This LED is normally off, and illuminates only when a fault occurs with a component beneath the top lid.
Pull the chassis forward from its installed position within the rack. Remove the top lid and look for an amber LED on any of the disk drive modules or HS expander modules on the side-plane. Replace the faulty module per the applicable CRU replacement procedure.
Firmware fault LED
The LED illuminates amber when experiencing a firmware application fault such as a firmware upgrade failure or memory corruption. This LED is normally off, and illuminates only when a firmware-related fault occurs. See troubleshooting procedures if this fault displays.
Fault LED - rear panel (amber)
The LED illuminates amber when experiencing a system hardware fault with a component accessible via the enclosure rear panel (IOMs, PSUs, system fans). This LED is normally off, and illuminates only when a fault occurs with a component installed in the enclosure rear panel.
Observe the enclosure rear panel, and look for a fault indicator on the modules installed.
Fault LED - top lid left (amber)
The LED illuminates amber when experiencing a system hardware fault with a component accessible via the enclosure top panel. Amber display indicates that the top lid on the left should be removed to locate the faulty component within the controller channel. This LED is normally off, and illuminates only when a fault occurs with a component beneath the top lid on the left.
Pull the chassis forward from its installed position within the rack. Remove the top left lid and look for an amber LED on any of the disk drive modules or controller channel fans. Replace the faulty module per the applicable CRU replacement procedure.