question: public VNXeCommandJob restoreLunGroupSnap ( String snapId , VNXeSnapRestoreParam restoreParam ) throws VNXeException { StringBuilder urlBuilder = new StringBuilder ( URL_INSTANCE ) ; urlBuilder . append ( snapId ) ; urlBuilder . append ( URL_RESTORE ) ; _url = urlBuilder . toString ( ) ; return postRequestAsync ( restoreParam ) ; }
target:  Restore lun group snapshot