System component description
EMC VNX5300 Hardware Information Guide 11
Drive carrier
The disk 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 disk drive in place to ensure proper
connection with the midplane. Disk drive activity/fault LEDs are integrated into the carrier.
“3U, 15 disk drive DPE front view” on page 12 or “3U, 25 disk drive DPE front view” on
page 13 provides more information.
Disk drives
Each disk drive consists of one disk drive in a carrier. You can visually distinguish between
module types by their different latch and handle mechanisms and by type, capacity, and
speed labels on each module. You can add or remove a disk drive while the DPE is
powered up, but you should exercise special care when removing modules 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 disk processor enclosure (DPE). Basically, it
acts as the control center. Each SP includes status LEDs, PCI Gen 2 x2 I/O module slots,
and LAN ports. “DPE” on page 15 provides more information.
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. “SP AC power supply module” on
page 17 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.
To Next Page
Loading...
