Brocade Fabric OS Administrator's Guide Supporting Fabric OS v6.3.0 (53-1001336-02, November 2009)

282 Fabric OS Administrator’s Guide

53-1001336-02

LUN masking considerations

5. Enter the iscsiCfg --show fabric command to verify that the conflict has been resolved:

switch:admin> iscsicfg --show fabric

Switch IDSwitch WWN Switch State iSNSC

220 10:00:00:05:1e:36:0d:f8 In Sync Disabled

* 1 10:00:00:60:69:e0:01:56 -- Disabled

Aggregated iSCSI database state for fabric: In Sync

LUN masking considerations

The node WWN and port WWN of the local switch are used to query LUNs on the physical target. If

the physical target uses LUN masking to control access, these WWNs must be added to the LUN

masking to ensure that the LUN query returns the LUNs to the switch.

You can obtain these WWNs in either of two ways:

• Enter the iscsiCfg --easycreate tgt command with the -s option to return the node and port

WWNs of the switch.

The following is an example.

switch:admin> iscsicfg --easycreate tgt -s

The following WWNs will be used for any easycreate operation from this switch:

Node WWN: 10:00:00:60:69:80:04:4a

Port WWN: 21:fd:00:60:69:80:04:4a

• Enter the fcLunQuery command with the -s option to return the node and port WWNs of the

switch.

The following is an example.

switch:admin> fclunquery -s

The following WWNs will be used for any lun query from this switch:

Node WWN: 10:00:00:60:69:80:04:4a

Port WWN: 21:fd:00:60:69:80:04:4a

iSCSI FC zoning overview

After you have finished setting up the iSCSI target gateway, you can create an iSCSI FC zone for

discovery domains. However, if you do not have a zoning license, or if zoning is not implemented,

you cannot create an iSCSI FC zone for discovery domains.

Depending on whether you have an effective zone configuration enabled in the current fabric, you

will be able to choose where to put the iSCSI FC zone. It can be either contained in a defined

configuration or integrated into the effective configuration. Figure 37 on page 283 illustrates a

defined iSCSI FC Zone containing iSCSI virtual initiators and FC targets.