EMC2 VNX Series Hardware Information Guide

Disk-array enclosures
EMC VNX5400 Hardware Information Guide 75
◆ LCC (A and B) mini-SAS connectors (input and output)
◆ LCC (A and B) mini-SAS link LEDs
◆ LCC (A and B) bus ID
◆ LCC (A and B) LEDs (power and fault)
◆ DAE enclosure ID
◆ LCC (A and B) management (RJ-12) connector (not used in VNX5400)
◆ LCC (A and B) latch handle
Figure 54 Example of 2U, 25 (2.5-inch) disk drive DAE (rear view)
LCC
The LCC supports, controls, and monitors the DAE, and is the primary interconnect
management element. Each LCC includes connectors for input and output to downstream
devices.
As described previously, the LCCs in a DAE connect to the DPE and other DAEs with 6-Gb/s
mini-SAS cables. The cables connect the LCCs in a system in a daisy-chain topology.
Internally, each DAE LCC connects to the drives in its enclosure in a point-to-point fashion
through a switch. The LCC independently receives and electrically terminates incoming
signals. For traffic from the system’s storage processors, the LCC switch passes the signal
from the input port to the drive being accessed; the switch then forwards the drive output
signal to the port.
1 LLC B power supply LED (on, green) 7 LCC B bus ID
2 LCC B power supply fault LED (on, amber) 8 LCC B power and fault LEDs
3 LCC B AC power supply power in (recessed
plug)
9 DAE enclosure ID or address
4 LCC B mini-SAS connector link LED (on,
blue)
10 LCC B management (RJ-12) connector to
SPS (not used in VNX5400 platform)
5 LCC B mini-SAS connector (input); labeled
with a double circle (dot) symbol .
11 LCC A power supply latch handle
6 LCC B mini-SAS connector (output);
labeled with a double diamond symbol
.
12 LCC A right latch handle
6 Gb SAS
X4
#
6 Gb SAS
X4
#
3
2
4
5
8
11
12
B
A
X4
X4
6
9 10
7
1
VNX-000280

EMC2 VNX Series Specifications

General

Brand	EMC2
Model	VNX Series
Category	Storage
Language	English