EMC VNX Series Hardware Information Manual page 12

System component description
3U, 15 (3.5-inch) DPE
12 EMC VNX5300 Hardware Information Guide
Disk drives
Each disk drive consists of one disk drive in a carrier. You can visually distinguish
between disk drive types by their different latch and handle mechanisms and by type,
capacity, and speed labels on each disk drive. You can add or remove a disk drive while
the DPE is powered up, but you should exercise special care when removing disk drives
while they are in use. Disk drives are extremely sensitive electronic components.
Midplane
A midplane separates the front-facing disk drives from the rear-facing SPs. It distributes
power and signals to all components in the enclosure. SPs and disk drives plug directly
into the midplane.
Storage processor (SP)
The SP is the intelligent component of the 3U disk processor enclosure (DPE). Acting as
the control center, each SP includes status LEDs, PCI Gen 2 I/O module slots, and LAN
ports. The "DPE" section on
Storage processor (SP) power supply
The SP power supply is located on the top, left side of the SP when viewed from the rear.
This module is an auto-ranging, power-factor-corrected, multi-output, off-line converter
with its own line cord. Each power supply includes status LEDs. A latch on the power
supply locks it into place to ensure proper connection. The
on page 27 provides more information.
EMI shielding
EMI compliance requires a properly installed electromagnetic interference (EMI) shield in
front of the DPE disk 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. You must remove the bezel/shield to remove and install
disk drive modules.
On the front, the Block and File (Unified) VNX5300 platform 3U, 15 (3.5-inch) DPE carrier
includes the following:
3.5-inch 6-Gb/s SAS or 6-Gb/s NL-SAS disk drives (hot-swappable)
◆
Status LEDs
◆
page 25 provides more information.
"SP AC power supply" section