Cabling the FC-VI adapter and ISL in a shared-switches MetroCluster configuration with array LUNs

Cabling in a shared-switches MetroCluster configuration with array LUNs involves cabling the FC-VI and HBA ports to the switches, and cabling the switches to the storage arrays.

In a shared-switches configuration, four nodes join together to form two fabric-attached MetroCluster configurations. In the illustration, the MetroCluster configurations are as follows:
  • FMC1-1 and FMC1-2 form one fabric-attached MetroCluster configuration named FMC1.
  • FMC2-1 and FMC2-2 form another fabric-attached MetroCluster configuration named FMC2.
  1. Connect the ports of the FC-VI adapter to primary and secondary switches for both Data ONTAP systems in the MetroCluster configuration. The following table shows the FC-VI adapter connections for the sample configuration:
    FC-VI adapter on the Data ONTAP system... Connects to these switches...
    FMC1-1 Primary switch S1 and secondary switch S2 through port 0
    FMC1-2 Primary switch S3 and secondary switch S4 through port 0
    FMC2-1 Primary switch S2 and secondary switch S1 through port 1
    FMC2-2 Primary switch S3 and secondary switch S4 through port 1
  2. Connect the FC initiator ports to the primary and secondary switches. The FC initiator port connections for the sample configuration are shown in the following table:
    FC initiator ports on the Data ONTAP system Connect to these switches...
    FMC 1-1 Primary switch S1 and secondary switch S2 through port 2 and port 10
    FMC 1-2 Primary switch S3 and secondary switch S4 through port 2 and port 10
    FMC 2-1 Primary switch S2 and secondary switch S1 through port 3 and port 11
    FMC 2-2 Primary switch S3 and secondary switch S4 through port 3 and port 11
  3. Connect the storage arrays to the switches.The following table shows the switch-to-storage-array connections for FMC1:
    Storage array and port Switch and port
    1-1: Port 1A Switch 1: Port 7
    1-1: Port 1B Switch 1: Port 8
    1-1: Port 2A Switch 2: Port 7
    1-1: Port 2B Switch 2: Port 8
    2-1: Port 1A Switch 1: Port 5
    2-1: Port 1B Switch 1: Port 9
    2-1: Port 2A Switch 2: Port 5
    2-1: Port 2B Switch 2: Port 9
  4. Repeat steps 1 through 3 at another site. The following table shows the switch-to-storage-array connections for FMC2:
    Storage array and port Switch and port
    1-2: Port 1A Switch 3: Port 4
    1-2: Port 1B Switch 3: Port 5
    1-2: Port 2A Switch 4: Port 6
    1-2: Port 2B Switch 4: Port 5
    2-2: Port 1A Switch 3: Port 6
    2-2: Port 1B Switch 3: Port 7
    2-2: Port 2A Switch 4: Port 4
    2-2: Port 2B Switch 4: Port 7
  5. When cabling at both the sites is complete, connect an ISL (inter-switch link) cable to a port on each switch. In the illustration, the fabric containing switches S1 and S3 has two ISLs and the fabric containing switches S2 and S4 also has two ISLs.

    Switch S1 connects to switch S3 and switch S2 connects to switch S4 through ports 17 and 18.

After you finish cabling the devices, you need to configure traffic isolation on the switches. This configuration is required when you are using dual ISLs. See the Fabric-attached MetroCluster Systems Brocade Switch Configuration Guide or the Fabric-attached MetroCluster Systems Cisco Switch Configuration Guide for more information.