EMC VNX Series Hardware Information Manual page 114

Disk-array enclosures
114 EMC VNX8000 Hardware Information Guide
ICM
The 4U, 60 DAE external interfaces are made through the ICM. The ICM is the primary
interconnect management element
The ICM is a plug-in module that includes a USB connector, RJ-12 management adapter,
Bus ID indicator, enclosure ID indicator, two input mini-SAS connectors, and two output
mini-SAS connectors with corresponding LEDs indicating the link and activity of each
mini-SAS connector for input and output to devices.
The ICM is hot-swapable. It has a built-in thumbscrew for ease of installation and removal.
1
0
9
1
8
0
7
1
1 ICM USB connector
2 ICM management (RJ-12) connector to SPS 7
3 ICM bus ID indicator (yellowish green)
4 Two ICM bus ID LEDs (power, green; fault,
amber)
5 ICM enclosure ID indicator (blue)
Figure 96 Example of ICM connectors and LEDs (rear view)
As described previously, the ICMs in a 4U, 60 DAE connect to the SPE and other DAEs with
6-Gb/s SAS cables. The cables connect the ICMs in a system in a daisy-chain topology.
(Figure 96).
2
3
4
5
6
VNX-000629
6 Four ICM mini-SAS input/output connector
LEDs (bi-color blue/green)
Two ICM mini-SAS output connectors;
labeled with a double diamond symbol
bottom port is labeled 1.
8 ICM thumbscrew
9 Two ICM mini-SAS input connectors;
labeled with a double circle (or dot)
symbol
the bottom port is labeled 1.
.
The top port is labeled 0 and the
.
The top port is labeled 0 and