110
EMC VNX5400 Hardware Information Guide
Disk-array enclosures
ICM
The 4U, 60 (2.5- or 3.5-inch) 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 connector
(not used), 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.
Figure 89 Example of ICM connectors and LEDs (rear view)
As described previously, the ICMs in a 4U, 60 (2.5- or 3.5-inch) DAE connect to the DPE
and other DAEs with 6-Gb/s mini-SAS cables. The cables connect the ICMs in a system in
a daisy-chain topology.
1
ICM USB connector
6
Four ICM mini-SAS input/output connector
LEDs (bi-color blue/green)
2
ICM management (RJ-12) connector (not
used in the VNX5400 platform)
7
Two ICM mini-SAS connectors (output or
expansion); labeled with a double
diamond symbol
.
The top port is
labeled 0 and the bottom port is labeled 1.
3
ICM bus ID indicator (yellowish green)
8
ICM thumbscrew
4
Two ICM LEDs (power, green; fault, amber) 9
Two ICM mini-SAS input connectors (input
or primary); labeled with a double circle
(or dot) symbol
.
The top port is
labeled 0 and the bottom port is labeled 1.
5
ICM enclosure ID indicator (blue)
1
2
3
4
5
9
6
7
VNX-000629
8
0
0
1
1