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Dell Unity™ All Flash and Unity Hybrid Hardware Information Guide

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3U, 80-drive DAE top view

Component overview

The 3U, 80-drive DAE includes the following internal components:

  • Disk drives in 2.5-inch carriers (hot-swappable) (1)
  • 10 redundant cooling modules
    • Five in the front of the system, labeled 0-4 (2)
    • Five at the rear of the system, labeled 5-9 (3)

The disk drive slots and cooling modules on an 80-drive DAE are located inside the enclosure. To access the disk drives, release and pull the enclosure out of the cabinet. The enclosure slides out of the cabinet far enough for you to access its internal components, and then locks on the rails in the service position so that you cannot pull it out any farther.

Figure 1. 3U, 80-drive DAE internal component locations (top view)
An illustration of the top view of an 80-drive DAE. The system is fully populated with 80 drives and 10 fans. The drives are called out with the number 1. The five fans at the front are called out with the number two. The five fans at the rear are called out with the number three.

Disk drive LEDs

Figure 2. 2.5 inch disk drive LEDs
The top view of a 2.5 inch disk drive. The two LEDs at the bottom are marked with a number. The bottom left LED is marked with a 1, and the bottom right LED is marked with a 2.
LED Location Color State Description
Disk drive on/activity 1Blue On Powering and powered up
Blinking Disk drive activity
Disk drive fault Amber On Fault has occurred
- Off No fault has occurred

Cooling module LEDs

Cooling modules contain only one LED, to indicate that the part has faulted.

Figure 3. Cooling module fault LED location
An illustration of a fan. At the bottom left of the fan, there is an orange LED that is enlarged for detail. This is the fault LED.

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