Example of switch zoning in a four-node MetroCluster configuration with array LUNs

Switch zoning defines paths between connected nodes. Configuring the zoning enables you to define which array LUNs can be viewed by a specific ONTAP systems.

You can use the following example as a reference when determining zoning for a four-node MetroCluster configuration with array LUNs. The example shows single-initiator to single-target zoning for a MetroCluster configuration. The lines in the following example represent zones rather than connections; each line is labeled with its zone number:

This graphic depicts the switch zones in an example MetroCluster configuration with array LUNs. The graphic is described by the surrounding text.

In the illustration, array LUNs are allocated on each storage array for the MetroCluster configuration. LUNs of equal size are provisioned on the storage arrays at both sites, which is a SyncMirror requirement. Each ONTAP system has two paths to array LUNs. The ports on the storage array are redundant.

In the illustration, the redundant array port pairs for both the sites are as follows:

The redundant port pairs on each storage array form alternate paths. Therefore, both the ports of the port pairs can access the LUNs on the respective storage arrays.

The following table shows the zones for this example:
Zone ONTAP controller and initiator port Storage array port
FC_switch_A_1
z1 Controller_A_1: Port 0a Port 1A
z3 Controller_A_1: Port 0c Port 1A'
z5 Controller_A_2: Port 0a Port 1B
z7 Controller_A_2: Port 0c Port 1B'
FC_switch_A_2
z2 Controller_A_1: Port 0b Port 2A'
z4 Controller_A_1: Port 0d Port 2A
z6 Controller_A_2: Port 0b Port 2B'
z8 Controller_A_2: Port 0d Port 2B
FC_switch_B_1  
z9 Controller_B_1: Port 0a Port 1C'
z11 Controller_B_1: Port 0c Port 1C
z13 Controller_B_2: Port 0a Port 1D'
z15 Controller_B_2: Port 0c Port 1D
FC_switch_B_2  
z10 Controller_B_1: Port 0b Port 2C
z12 Controller_B_1: Port 0d Port 2C'
z14 Controller_B_2: Port 0b Port 2D
z16 Controller_B_2: Port 0d Port 2D'
The following table shows the zones for the FC-VI connections at Site A and Site B:
Zone ONTAP controller and FC initiator port Switch
Site A  
zX Controller_A_1: Port FC-VI a FC_switch_A_1
zY Controller_A_1: Port FC-VI b FC_switch_A_2
zX Controller_A_2: Port FC-VI a FC_switch_A_1
zY Controller_A_2: Port FC-VI b FC_switch_A_2
Site B  
zX Controller_B_1: Port FC-VI a FC_switch_B_1
zY Controller_B_1: Port FC-VI b FC_switch_B_2
zX Controller_B_2: Port FC-VI a FC_switch_B_1
zY Controller_B_2: Port FC-VI b FC_switch_B_2