Failed to extend the lvm thinpool when adding devicepaths to optionalPaths

Issue

• When deploying an LVMCluster with the following configuration in spec.storage.deviceClasses.deviceSelector.optionalPaths, a volume group is created successfully:

  apiVersion: lvm.topolvm.io/v1alpha1
  kind: LVMCluster
  metadata:
    name: lvmcluster
    namespace: openshift-storage
  spec:
    storage:
      deviceClasses:
        - deviceSelector:
            optionalPaths:
              - /dev/sdb
          fstype: xfs
          thinPoolConfig:
            chunkSizeCalculationPolicy: Static
            sizePercent: 90
            name: thin-pool-1
            overprovisionRatio: 10
          default: true
          name: vg1
  

• However, when attempting to add a new device path to spec.storage.deviceClasses.deviceSelector.optionalPaths afterward,

  spec:
    storage:
      deviceClasses:
        - deviceSelector:
            optionalPaths:
              - /dev/sdb
              - /dev/disk/by-id/scsi-XXXXXXXXXXXXXXXXXXXXXXXXXXXXX   <<<==== add
  

• the following error occurs, and the device cannot be added:

  error on node openshift-storage/<node-name> in volume group openshift-storage/vg1: failed to create thin pool thin-pool-1 for volume group vg1: failed to extend the lvm thinpool thin-pool-1 in volume group vg1: VgSize (g) and lvSize (0), units do not match and cannot be used for extension