Description of problem:

• Not able to configurable the `globalMaxSnapshotsPerBlockVolume`

-  As per official doc this feature is configuration.
https://docs.openshift.com/container-platform/4.16/storage/container_storage_interface/persistent-storage-csi-vsphere.html#vsphere-change-max-snapshot_persistent-storage-csi-vsphere

• Please see the below testing result.

  Before Patch:
  
  $ ./oc -n openshift-cluster-csi-drivers get cm/vsphere-csi-config -o yaml
  apiVersion: v1
  data:
    cloud.conf: |
      # Labels with topology values are added dynamically via operator
      [Global]
      cluster-id = ci-ln-1pd7szb-c1627-cbtd8
  
      [VirtualCenter "vcenter-1.ci.ibmc.devcluster.openshift.com"]
      insecure-flag           = true
      datacenters             = cidatacenter-2
      migration-datastore-url = ds:///vmfs/volumes/vsan:52eb63e99ce26f5b-b5ba4b2484169430/
  kind: ConfigMap
  metadata:
    creationTimestamp: "2024-07-12T04:54:31Z"
    name: vsphere-csi-config
    namespace: openshift-cluster-csi-drivers
    resourceVersion: "8172"
    uid: b1a4cf21-8416-4dc2-a3b5-2abe887dbe4f
  
  Patch command:
  
  $ ./oc patch clustercsidriver/csi.vsphere.vmware.com --type=merge -p '{"spec":{"driverConfig":{"vSphere":{"globalMaxSnapshotsPerBlockVolume": 10}}}}'
  Warning: unknown field "spec.driverConfig.vSphere.globalMaxSnapshotsPerBlockVolume"
  clustercsidriver.operator.openshift.io/csi.vsphere.vmware.com patched
  
  $ ./oc -n openshift-cluster-csi-drivers get cm/vsphere-csi-config -o yaml
  apiVersion: v1
  data:
    cloud.conf: |
      # Labels with topology values are added dynamically via operator
      [Global]
      cluster-id = ci-ln-1pd7szb-c1627-cbtd8
  
      [VirtualCenter "vcenter-1.ci.ibmc.devcluster.openshift.com"]
      insecure-flag           = true
      datacenters             = cidatacenter-2
      migration-datastore-url = ds:///vmfs/volumes/vsan:52eb63e99ce26f5b-b5ba4b2484169430/
  kind: ConfigMap
  metadata:
    creationTimestamp: "2024-07-12T04:54:31Z"
    name: vsphere-csi-config
    namespace: openshift-cluster-csi-drivers
    resourceVersion: "8172"
    uid: b1a4cf21-8416-4dc2-a3b5-2abe887dbe4f
  
  $ ./oc get clusterversion
  NAME      VERSION   AVAILABLE   PROGRESSING   SINCE   STATUS
  version   4.16.2    True        False         11m     Cluster version is 4.16.2 

• Got same result with OCP v4.16.1

Also can you confirm if this is TP or GA feature?
As per the https://github.com/openshift/enhancements/blob/master/enhancements/storage/vsphere-driver-configuration.md?plain=1#L154
I see it still in enhancement and in TP
~~~

1. 1. 1. Graduation Criteria| OpenShift | Maturity     |

         -----------	--------------
         4.16	Tech Preview
         4.17	GA

         ~~~

https://redhat-internal.slack.com/archives/CBQHQFU0N/p1720768379160209