You cannot move an NFS volume from one NFS storage pool to another.
You cannot control which NFS volume HCP writes data to within an NFS storage pool.
When HCP creates a mount point for a specific NFS volume, HCP stores a file named .__hcp_uuid__ in the shared directory on the device that’s represented by the NFS storage component associated with that mount point. This file uniquely associates the NFS shared directory with the NFS volume. As a result:
HCP creates only one NFS storage volume for any given exported share.
If you delete an NFS mount point from an NFS storage component, the associated exported share cannot be reused as is. This means that any data remaining in the NFS volume associated with the mount point becomes permanently inaccessible to HCP.
To reuse an exported share after the associated NFS mount point is deleted from HCP, you first need to delete any remaining files from the shared directory, including the .__hcp_uuid__ file.
If you inadvertently delete the .__hcp_uuid__ file from an NFS shared directory that contains other HCP data, HCP can no longer use the exported share. Contact your authorized HCP service provider for help in recreating the file.
When you back up an NFS shared directory that’s associated with an NFS volume, you need to ensure that the .__hcp_uuid__ file is included in the backup operation. This ensures that the file still exists in the directory after a restore operation.