LED Status Description
System power Blue System powered on
System status Green System operating correctly
Red • There are system errors or warnings (e.g. degraded
RAID mode, memory failure, fan/power supply failure,
system/disk temperature too high, storage pool
reaching threshold value) recorded in the system logs
of the QES to notify the system administrator. The
errors need to be corrected.
• The system is performing takeover. The dual active-
active controller system enables a single controller to
take over the pool disk resources owned by the other
controller in the event of a controller failure. Takeovers
can be initiated manually or be set up with the
automatic system failover protection. For more
information, refer to the QES user guide.
• Power supply unit unplugged
Drive status Green Drive can be accessed
Flashing green slowly The Locate command, which helps identify the drive, is
being executed in the Storage Manager on QES.
Red Drive read/write error
Off Drive not installed
Drive activity Flashing green continuously
or slowly
No drive activity
Flashing green High activity on drive or drive being configured as part of
an array
Front Panel OLED Display
The OLED display provides a quick understanding of the storage controllers and main component status.
For details on the location of the OLED display, see Front Panel.
Icon name Icon Description
Controller power
status
• Icon lit: Both controllers powered on
• Icon flashing: Both controllers booting
• Icon lit: Only controller A powered on
• Icon flashing: Controller A booting
• Icon lit: Only controller B powered on
• Icon flashing: Controller B booting
ES1686dc User Guide
Product Overview 9
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