Host does not see FCP LUN mapped from v3140

[crobertson]

Very similar problem to http://communities.netapp.com/message/43282, but I DO see the HBAs logged in on the filer:

Vfiler-1> igroup show -v

    VMhost9 (FCP):

        OS Type: vmware

        Member: 21:00:00:24:ff:23:4b:40 (logged in on: 0b, vtic)

        Member: 21:00:00:24:ff:23:4b:41 (logged in on: 0b, vtic)

Further, I have the iGroup mapped to a LUN:

Vfiler-1> lun show -v    

        /vol/VMHost1BFS/root        20.0g (21428699136)   (r/w, online, mapped)

                Comment: "Boot from SAN for VMHost1"

                Serial#: W-P8dJgKNTzg

                Share: none

                Space Reservation: enabled

                Multiprotocol Type: vmware

                Maps: VMhost9=0

The host refuses to see the LUN.  The goal is to use this LUN as a boot partition for the host, but for testing purposes, I have installed VMware (ESXi 4.1) to local storage.  Initiating a scan of the Storage Adapter returns quickly, but doesn't result in any found devices.

I have a FAS 270c connected to the same fabric, which works as expected.

What further information can I provide to help in finding a solution?

[crobertson]

For anyone who comes upon this message looking for anwers:

The resolution was to enable zoning on the FC switches.  Oddly enough, even though the initiator was logged into the Filer, it (and two others that I tested with) would not "see" the LUNs until zoning was enabled.

My thanks go to Sarah and Vincent with NetApp support for their assistance with this vexing problem.

[akw_white]

What make and model of switch are you using in this case?

[crobertson]

The host connects to a Cisco UCS 6120 Fabric interconnect.  The FAS3140 connects to a Cisco MDS 9124.  The Fas270c (which worked before zoning and continues to work afterwards is on a MDS 9120.  Both the UCS 6120 and the 9120 connect to the 9124.

So the data path that required zoning was QLogic initiator -> UCS 6120 -> MDS 9124 -> FAS 3140.

The data path that did not require zoning was QLogic initiator -> UCS 6120 -> MDS 9124 -> MDS 9120 -> FAS 270c.