Chapter 4 Installation of 2U enclosures 23
a. Connect SAS cables from the SAS ports to the host switch or HBA as shown.
b. (Optional) Connect an Ethernet cable from the management port to the host as shown.
12Gb/s
0A
0B
12Gb/s
1
2
4
3
6
5
7
4
3
6
5
7
1
2
8
8
9
10
Figure 15 Sample data and management cabling among 2U controllers and host system switches
2. Take the following actions to connect Controller 0A to its related expansion modules. The example below
has 3 expansion enclosures directly below the storage enclosure.
IMPORTANT Best practice is to use the expansion Port A for input and Port C for output.
a. Insert a mini-SAS data cable into the top controller, Controller 0A, then connect the other end to SAS
port A in the first expansion enclosure, 1A.
b. Insert a mini-SAS data cable from SAS port C in the first expansion enclosure, 1A, and connect the other
end to SAS port A in the second expansion enclosure, 2A.
c. Insert a mini-SAS data cable from SAS port C in the second expansion enclosure, 2A, and connect the
other end to SAS port A in the third expansion enclosure, 3A.
3. Take the following actions to connect Controller 0B to its related expansion modules.
IMPORTANT Best practice is to use the expansion Port A for input and Port C for output.
a. Insert a mini-SAS data cable into the bottom controller, Controller 0B, and connect the other end to SAS
port A in the third expansion enclosure, 3B.
b. Insert a mini-SAS data cable from SAS port C in the third expansion enclosure, 3B, and connect the
other end to SAS port A in the second expansion enclosure, 2B.
c. Insert a mini-SAS data cable from SAS port C in the second expansion enclosure, 2B, and connect the
other end to SAS port A in the first expansion enclosure, 1B.
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