FCP devices are not found in z/VM

Problem

After you edit the FCP devices in an FCP multipath template, the GUI of the IBM Cloud Infrastructure Center shows, for example, the following warning message.

The FCP devices (1A06, 1B10 - 1B12) are not found in z/VM host

Explanation

In the previous example, 1A06, 1B10 - 1B12 represents the FCP devices 1A06, 1B10, 1B11, 1B12 included in the FCP multipath template. However, those FCP devices are not found in the z/VM hypervisor of the current host.

Resolution

If you do not want the reported FCP devices to be used by the IBM Cloud Infrastructure Center any longer, you need to remove them from the FCP multipath template.

Otherwise, you can consult your z/VM administrator to bring those FCP devices online in the z/VM hypervisor.

Refer to FCP vHBA Device Requirement for examples how to configure the FCP devices.

To verify whether an FCP device is online, run the following command from the corresponding compute node.

smcli System_WWPN_Query -T `vmcp q userid | awk '{print $1}'` -k "OWNER=YES" | egrep -i -A5 [replace with a FCP device]

For example, the following result indicates the FCP 1A06 is online in the z/VM layer.

[root@112-cmp-wdl ~]# smcli System_WWPN_Query -T `vmcp q userid | awk '{print $1}'` -k "OWNER=YES" | egrep -i -A5 1A06
FCP device number: 1A06
  Status: Free
  NPIV world wide port number: C05076DE33000349 c05076de33000349
  Channel path ID: 27
  Physical world wide port number: C05076DE33002E41 c05076de33002e41
  Owner: NONE