update to multipath scripts and code/error logging

plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/storage/MultipathSCSIAdapterBase.java

@@ -178,7 +178,8 @@ public abstract class MultipathSCSIAdapterBase implements StorageAdaptor {
 
         // validate we have a connection, if not we need to connect first.
         if (!isConnected(address.getPath())) {
-            LOGGER.debug("Physical disk " + address.getPath() + " is not connected, a request to connectPhysicalDisk must be made before it can be used.");
+            LOGGER.warn("Physical disk " + address.getPath() + " is not connected, a request to connectPhysicalDisk must be made before it can be used.");
+            return null;
         } else {
             LOGGER.debug("Physical disk " + address.getPath() + " is connected, proceeding to get its size.");
 

scripts/storage/multipath/connectVolume.sh

@@ -29,7 +29,7 @@ WWID=${2:?"WWID required"}
 
 WWID=$(echo $WWID | tr '[:upper:]' '[:lower:]')
 
-START_CONNECT=$(dirname $0)/startConnect.sh
+START_CONNECT=$(dirname $0)/startConnectVolume.sh
 if [ -x "${START_CONNECT}" ]; then
    echo "$(date): Starting connect process for ${WWID} on lun ${LUN}"
    ${START_CONNECT} ${LUN} ${WWID}
@@ -49,7 +49,7 @@ while [ ! -e /dev/mapper/3${WWID} ]; do
    sleep 1
 done
 
-FINISH_CONNECT=$(dirname $0)/finishConnect.sh
+FINISH_CONNECT=$(dirname $0)/finishConnectVolume.sh
 if [ -x "${FINISH_CONNECT}" ]; then
    echo "$(date): Starting post-connect validation for ${WWID} on lun ${LUN}"
    ${FINISH_CONNECT} ${LUN} ${WWID}