NEC Express 5800/320Lb - Manual (Page 62)

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TIPS:
When there are many accesses, the access LED will blink frequently. Check if the
LED blinks in green when the number of accesses decreases, or if it is green when there
are no accesses anymore.
When you power on NEC Express5800/ft series and the access LEDs do not
illuminate green, remount the hard disks.