Dell EMC Unity 880F Hardware Information Guide

2U, 25-drive DPE component overview
The 25-drive DPE is two rack units (U), 8.9 cm (3.5 in.) high, 79.2 cm (31.2 in.) deep,
and includes slots for twenty-five 2.5-in. drives.
The DPE consists of the following components:
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Drives
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Midplane
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Storage processor assembly
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Power supply module
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EMI shielding
Drives
Each drive consists of one drive in a carrier. The drive carriers are metal and plastic
assemblies that provide smooth, reliable contact with the enclosure slot guides and
midplane connectors. Each carrier has a handle with a latch and spring clips. The latch
holds the drive in place to ensure proper connection with the midplane. Drive activity
and fault LEDs are located on the front of the enclosure.
SAS and SAS flash drives are supported. The drives are populated in the system from
left to right.
Note
The first four drive slots are reserved for system drives, and should not be removed.
You can visually distinguish between drive types by their different latch and handle
mechanisms and by type, capacity, and speed labels on each drive. You can add or
remove a drive while the DPE is powered on, but you should exercise special care
when removing modules while they are in use. Drives are sensitive electronic
components.
Midplane
The midplane separates the front-facing drives from the rear-facing SP assemblies. It
distributes power and signals to all components in the enclosure. The SP assemblies
and drives plug directly into the midplane.
Storage processor assembly
Each DPE contains two SP assemblies. The SP assembly is the intelligent component
providing the compute capability of the DPE. Acting as the control center, each SP
assembly includes status LEDs.
Storage processor assembly power supply module
Each SP assembly contains a power supply module that connects the system to an
exterior power source. Redundant power supplies can keep the entire DPE running if
one power supply fails. The power supplies include LEDs to indicate component status.
A latch on the module locks it into place to ensure proper connection.
EMI shielding
EMI compliance requires a properly installed electromagnetic interference (EMI)
shield in front of the DPE drives. When installed in cabinets that include a front door,
the DPE includes a simple EMI shield. Other installations require a front bezel that has
a locking latch and integrated EMI shield. Remove the bezel or shield to remove and
install the drives.
DPE component descriptions
8 Unity 480/F, Unity 680/F, Unity 880/F Hardware Information Guide

Dell EMC Unity 880F Specifications

General

Brand	Dell EMC
Model	Unity 880F
Category	Storage
Language	English