Dell Unity™ All Flash and Unity Hybrid Hardware Information Guide

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2U, 12 (3.5-inch) disk drive DPE

The following illustration shows the location of the disk drives and the status LEDs in a 2U, 12 (3.5-inch) disk drive DPE.

12-drive 2U DPE front view with numbered callouts — Figure 1. Example of the 2U, 12 (3.5-inch) disk drive DPE (front view)

Table 1. 2U, 12 (3.5-inch) disk drive DPE descriptions
Location	Description	Location	Description
	3.5-inch SAS disk drive		DPE power on LED (blue)
	DPE fault LED (amber)		Disk drive ready/activity and fault LED (blue and amber)

The following table describes the 2U, 12 (3.5-inch) disk drive DPE and the disk drive status LEDs.

Table 2. 2U, 12 (3.5-inch) DPE and disk drive LEDs
LED	Location	Color	State	Description
DPE fault		Amber	On	DPE fault, including SP faults.
DPE fault		—	Off	Normal
DPE power		Blue	On	Powering and powered up
DPE power		—	Off	Powered down
Disk drive ready/activity and fault NOTE:The disk drive LED (a left or right triangle symbol) points to the disk drive that it refers to.		Blue	On	Powering and powered up
			Blinking, mostly on	Disk drive is on with I/O activity
			Blinking at constant rate	Disk drive is spinning up or down normally
			Blinking, mostly off	Disk drive is powered up but not spinning NOTE:This is a normal part of the spin-up sequence, occurring during the spin-up delay of a slot.
		Amber	On	Fault has occurred
		—	Off	Disk drive is powered down