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:

  • Storage array at Site A:

    • Ports 1A and 2A

    • Ports 1B and 2B

    • Ports 1C and 2C

    • Ports 1D and 2D

  • Storage array at Site B:

    • Ports 1A' and 2A'

    • Ports 1B' and 2B'

    • Ports 1C' and 2C'

    • Ports 1D' and 2D'

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 tables show the zones for this example:

Zones for FC_switch_A_1

Zone

ONTAP controller and initiator port

Storage array port

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'

Zones for FC_switch_A_2

Zone

ONTAP controller and initiator port

Storage array port

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

Zones for FC_switch_B_1

Zone

ONTAP controller and initiator port

Storage array port

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

Zones for FC_switch_B_2

Zone

ONTAP controller and initiator port

Storage array port

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'

Zones for the FC-VI connections at Site A

Zone

ONTAP controller and FC initiator port

Switch

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

Zones for the FC-VI connections at Site B

Zone

ONTAP controller and FC initiator port

Switch

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
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