9
When the yellow LED is lit, a fan or a DC output has malfunctioned. Each modular power supply contains two fans and three DC supplies (+3.3 VDC, +5 VDC, and +2 VDC).
The green LED indicates that the DC supplies are operating, but does not guarantee that the DC outputs are within specification.
Table
Green | Yellow | Condition |
Off | Off | No AC input or keyswitch is turned off. |
On | Off | Normal operation. |
On | On | A fan has failed or one or more voltages are out of |
|
| specification. |
Off | On | One or more DC outputs have failed, or the voltages are out of |
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| specification, or the system is in the low power state. |
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|
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The PCMs operate in redundant current share mode. If a module fails, the remaining modules may or may not provide enough current to continue system operation. The system’s ability to continue operations depends on the total demand for current.
9.2.6 Disk Tray Indicators
The availability and type of status information varies with the disk tray type used in a system. Refer to the disk tray user manual for specific status information.
Ultra Enterprise 6000/5000/4000 Systems |
