Dell PowerEdge R840 EMC Installation and Service Manual - Page 171

Drive indicator codes

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Table 51. DC PSU status indicator codes (continued) Power indicator codes Condition CAUTION: When correcting a PSU mismatch, replace only the PSU with the blinking indicator. Swapping the PSU to make a matched pair can result in an error condition and unexpected system shutdown. To change from a High Output configuration to a Low Output configuration or conversely, you must turn off the system. CAUTION: If two PSUs are used, they must be of the same type and have the same maximum output power. CAUTION: Combining AC and DC PSUs is not supported and triggers a mismatch. Drive indicator codes The LEDs on the drive carrier indicates the state of each drive. Each drive carrier in your system has two LEDs: an activity LED (green) and a status LED (bicolor, green/amber). The activity LED flashes whenever the drive is accessed. Figure 126. Drive indicators on the drive and the mid drive tray backplane 1. Drive activity LED indicator 2. Drive status LED indicator 3. Drive capacity label NOTE: If the drive is in the Advanced Host Controller Interface (AHCI) mode, the status LED indicator does not turn on. Table 52. Drive indicator codes Drive status indicator code Flashes green twice per second Off Flashes green, amber, and then turns off Flashes amber four times per second Flashes green slowly Solid green Condition Identifying drive or preparing for removal. Drive ready for removal. NOTE: The drive status indicator remains off until all drives are initialized after the system is turned on. Drives are not ready for removal during this time. Predicted drive failure. Drive failed. Drive rebuilding. Drive online. System diagnostics and indicator codes 171

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Table 51. DC PSU status indicator codes (continued)
Power indicator codes
Condition
CAUTION:
When correcting a PSU mismatch, replace
only the PSU with the blinking indicator. Swapping the
PSU to make a matched pair can result in an error
condition and unexpected system shutdown. To change
from a High Output configuration to a Low Output
configuration or conversely, you must turn off the
system.
CAUTION:
If two PSUs are used, they must be of the
same type and have the same maximum output power.
CAUTION:
Combining AC and DC PSUs is not supported
and triggers a mismatch.
Drive indicator codes
The LEDs on the drive carrier indicates the state of each drive. Each drive carrier in your system has two LEDs: an activity LED (green)
and a status LED (bicolor, green/amber). The activity LED flashes whenever the drive is accessed.
Figure 126. Drive indicators on the drive and the mid drive tray backplane
1.
Drive activity LED indicator
2.
Drive status LED indicator
3.
Drive capacity label
NOTE:
If the drive is in the Advanced Host Controller Interface (AHCI) mode, the status LED indicator does not turn on.
Table 52. Drive indicator codes
Drive status indicator code
Condition
Flashes green twice per second
Identifying drive or preparing for removal.
Off
Drive ready for removal.
NOTE:
The drive status indicator remains off until all drives
are initialized after the system is turned on. Drives are not
ready for removal during this time.
Flashes green, amber, and then turns off
Predicted drive failure.
Flashes amber four times per second
Drive failed.
Flashes green slowly
Drive rebuilding.
Solid green
Drive online.
System diagnostics and indicator codes
171