allaccess is needed on the switch for auto zoning to work in FC drivers

[Xing Yang]

During auto zoning testing, we found that we need to change the default noaccess to allaccess on the Brocade switches for it to work with our driver. Need further investigation.

[Xing Yang (xing-yang)]

Some update for the VMAX FC driver. The look up service expects the driver to pass in a list of initiator wwns and a list of target wwns and uses that as a starting point to build the initiator target map. For a driver that doesn't use the look up service (VMAX driver), it needs to build the initiator target map itself. The VMAX driver uses SMI-S. If the initiator is not logged into the array, the SMI-S query won't return the list of target wwns. With noaccess, the initiator won't be able to log in to the array and therefore can't find target wwns for the initiator. This is why allaccess is needed in our case.

[Walt Boring (walter-boring)]

This seems like a mis-configuration of your switch. If you want the lookup service to work, the switch needs to be able to discover the targets/initiators plugged into the switch itself, which requires allaccess set to be on. If you disable all access, then the switch can't see what is plugged in. This seems like an invalid bug to me.

[Xing Yang (xing-yang)]

Brocade said auto zoning should work with the default setting no access.

[Angela Smith (aallen-m)]

Please provide cinder log which shows workflow and problem encountered during zoning.

[Xing Yang (xing-yang)]

Change status to incomplete for now until we get logs.

[Angela Smith (aallen-m)]

Xing, have you been able to get logs for this issue?

[Xing Yang (xing-yang)]

This is not a problem any more after we used the look up service. Thanks Angela.