This is a clone of issue OCPBUGS-1805. The following is the description of the original issue:
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The vSphere CSI cloud.conf lists the single datacenter from platform workspace config but in a multi-zone setup (https://github.com/openshift/enhancements/pull/918 ) there may be more than the one datacenter.

This issue is resulting in PVs failing to attach because the virtual machines can't be find in any other datacenter. For example:

0s Warning FailedAttachVolume pod/image-registry-85b5d5db54-m78vp AttachVolume.Attach failed for volume "pvc-ab1a0611-cb3b-418d-bb3b-1e7bbe2a69ed" : rpc error: code = Internal desc = failed to find VirtualMachine for node:"rbost-zonal-ghxp2-worker-3-xm7gw". Error: virtual machine wasn't found  

The machine above lives in datacenter-2 but the CSI cloud.conf is only aware of the datacenter IBMCloud.

$ oc get cm vsphere-csi-config -o yaml  -n openshift-cluster-csi-drivers | grep datacenters
    datacenters = "IBMCloud"