LED Status Description
System status Green System operating normally
Red • 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) were detected. Refer to the QES User Guide for
details.
• 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 QES Storage Manager Locate command is enabled
and is identifying the drive
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 displays the status of the storage controllers and main components.
For details on the location of the OLED display, see Front Panel.
Icon name Icon Description
Controller power
status
• On: Both controllers are powered on
• Flashing: Both controllers are booting
• On: Only controller A is powered on
• Flashing: Controller A is booting
• On: Only controller B is powered on
• Flashing: Controller B is booting
ES1686dc User Guide
Product Overview 10
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