MAINTENANCE
DRIVE STATUS INDICATORS
As shown in the figure below, each drive has three status LEDs.
Figure 5. Location of Drive Status Indicators (TX4 shown)
MEANING OF STATUS INDICATORS
Indicator | Color | Meaning |
Power | Off | No disk drive power – power off or no disk installed. |
| Green | Disk power on. |
Status | Green | Normal |
| Amber | Data is being rebuilt to this drive |
| Red | Failed |
Disk | Off | No drive installed or the drive has failed |
| Green | This will blink on and off to indicate disk activity |
CRITICAL & OFFLINE ARRAYS
A fault tolerant array goes "critical" when a drive is removed or fails. Due to the fault tolerance of the array, the data is still available and online. However, once the array goes critical, the array has lost its fault tolerance, and performance may be adversely affected. If the fault was caused by a drive that was removed, the drive should be replaced by another drive, either identical or larger, in order for the RAID system to rebuild and restore optimal configuration.
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