Update powerwall.sh

powerwall.sh

@@ -431,6 +431,7 @@ SHUTDOWN_SERVER(){
 				echo -en "${idsCL[White]}${MSG//${PW_VCENTER_HOST_NAMES[${PW_MAIN_ISCSI}]}/${idsCL[LightCyan]}${PW_VCENTER_HOST_NAMES[${PW_MAIN_ISCSI}]}}${idsCL[White]}${MSG_SPC}: "
 				if [ "${TEST}" != "true" ]; then
 					while ping -qw 10 -c3 "${PW_MAIN_ISCSI}">/dev/null 2>&1; do sleep 1; done
+					sleep 15s
 					echo -e "${idsCL[Green]}Done${idsCL[Default]}"
 				else
 					echo -e "${idsCL[Yellow]}(TEST MODE)${idsCL[Default]}"