@@ -452,15 +452,26 @@ function configure_tempest {

     fi

     # Using ``CINDER_ENABLED_BACKENDS``

+    # Cinder uses a comma separated list with "type:backend_name":

+    #  CINDER_ENABLED_BACKENDS = ceph:cephBE1,lvm:lvmBE2,foo:my_foo

     if [[ -n "$CINDER_ENABLED_BACKENDS" ]] && [[ $CINDER_ENABLED_BACKENDS =~ .*,.* ]]; then

+        # We have at least 2 backends

         iniset $TEMPEST_CONFIG volume-feature-enabled multi_backend "True"

-        local i=1

+        local add_comma_seperator=0

+        local backends_list=''

         local be

+        # Tempest uses a comma separated list of backend_names:

+        #   backend_names = BACKEND_1,BACKEND_2

         for be in ${CINDER_ENABLED_BACKENDS//,/ }; do

-            local be_name=${be##*:}

-            iniset $TEMPEST_CONFIG volume "backend${i}_name" "$be_name"

-            i=$(( i + 1 ))

+            if [ "$add_comma_seperator" -eq "1" ]; then

+                backends_list+=,${be##*:}

+            else

+            # first element in the list

+                backends_list+=${be##*:}

+                add_comma_seperator=1

+            fi

         done

+        iniset $TEMPEST_CONFIG volume "backend_names" "$backends_list"

     fi

     if [ $TEMPEST_VOLUME_DRIVER != "default" -o \