The light emitting diode (LED) indicators on each resource in your system provide status about informational and error events, location, and resource faults as well as other immediately required information.
The front display panel and rear operator panel provide most of the informational LEDs. The other resources contain LEDs that are specific to that resource or its function. Table 1 shows the LED icons, their meanings, the different color or flashing states each can have, and the resources that contain them.
| LED icon | LED name | State descriptions | Resource containing the LED |
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Power-on | A solid green light indicates that power is present on the resource. If the light is not lit, the resource is not receiving any power. |
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Location | This blue light can be in a solid or blinking state. Press the Identify button on the rear operator panel of a server enclosure to identify connected enclosure enclosures. The location indicator on the server enclosure blinks as the location indicators on the connected enclosure enclosures enter a solid blue state. Once the location indicators on all of the connected enclosure enclosures are lit, the location indicator on the server enclosure becomes a solid blue light. If the Identify button is pressed when the server enclosure location indicator is a solid blue light, the light blinks as the location indicators on the connected enclosure enclosures are turned off. The location indicator on the server enclosure is turned off after all enclosure enclosure indicator lights are turned off. |
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Information | A solid amber light indicates that a noncritical event has occurred. View the log in the DS Storage Manager to find more information about the event. The light remains solid until the condition has been corrected or you close the log entry in the DS Storage Manager. A flashing amber light indicates that the system is initializing and is not yet ready to be accessed by either the management console or host systems. Initialization is complete, and the system is ready for I/O, once the flashing amber light turns off. This light is lit for minor events. If the system alert indicator is lit at the same time as the information indicator, then two events (one minor and one major) have occurred on the resource. |
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System alert | A solid amber light indicates that a fault is present on the storage unit. Follow the other indicator LEDs to determine the location of the faulty resource. If no other resources have solid amber error LEDs, use the DS Storage Manager to view the current log entries and determine the point of failure. This light remains solid until the required resources have been replaced, the problem log entry has been closed through the DS Storage Manager, or unless you press the Remind button on the rear operator panel. If the Remind button is pressed on the rear operator panel, the system alert LED blinks on every 2 seconds. |
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Error | A solid amber light on a resource other than the front display panel or rear operator panel indicates that a fault exists on that resource. When the error LED is a solid amber, you can remove and replace the resource without any additional action on the DS Storage Manager. If a resource's error LED is lit, the system alert LEDs on the rear and front panels will also be a solid amber. The lights remain solid until the resource is replaced or the log entry is closed through the DS Storage Manager. |
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Data in cache on battery | When this indicator is lit, there is data in the nonvolatile cache that is supported by the battery backup unit. |
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Fault on opposite side | When this indicator is lit, the fault that is indicated by the system alert light is located on the rear of the enclosure. If this indicator is not lit, the fault that is indicated by the system alert light is located on the front of the enclosure. |
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Fault in external enclosure | When this indicator is lit, the fault that is indicated by the system alert light is located in a connected enclosure enclosure. Use the location indicators and the Identify button on the rear operator panel to find the connected enclosure enclosure with a solid amber system alert indicator. If this indicator is not lit, and the system alert indicator is lit, the fault is located on the current enclosure. |
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The front display panel on the server enclosure contains the LEDs that display information for the entire storage unit. This includes the server enclosure as well as any connected enclosure enclosures. An LED is lit if a fault or other event occurs on any of the enclosures contained within the storage unit. Figure 1 shows the location of the LEDs on the front display panel. Table 1 provides a description for each of the LEDs shown on the front display panel.
Both server enclosures and enclosure enclosures contain a rear operator panel. The rear operator panel on the server enclosure contains the LEDs that display information for the entire storage unit. The rear operator panel on the enclosure enclosure contains the LEDs that display information for the specific enclosure. An LED is lit if a fault or other event occurs on that specific enclosure. Figure 2 shows the location of the LEDs on the rear operator panel. Table 1 provides a description for each of the LEDs shown on the rear operator panel.
Multiple resource fault events: If there are multiple resources with a fault, and those resources can be repaired in any order, the system alert lights on the front and rear panels and the error light on each of the affected resources are a solid amber. If there are multiple resources with a fault, and those resources must be repaired in a specific order, the system alert lights on the front and rear panels are a solid amber. The error light on the resource that must be replaced first is a solid amber. Once that resource has been replaced and the error light is no longer turned on, the error light on the next resource that must be replaced is turned to a solid amber. The sequence continues in this manner until all required resources have been replaced and the system alert indicators on the front and rear panels are turned off.