Hi,I am trying to use failover of MDS. My lustre version is 1.2.3. This is what i do for this target. I have five nodes:node0,node1,node2,node3,node4, in which node1 and node4 are MDSs, node2 is OST and node3 is client. node1 and node4 mount a NFS directory as share storage from node0 to form a active/passive failover. First, i creat a config file using lmc: lmc -o test.xml --add node --node node1 --nide node1 --nettype tcp lmc -m test.xml --add net --node node2 --nid node2 --nettype tcp lmc -m test.xml --add net --node node3 --nid node3 --nettype tcp lmc -m test.xml --add net --node node4 --nid node4 --nettype tcp lmc -m test.xml --add mds --node node1 --mds mds1 --failover --fstype ext3 --dev /tmp/mds1 --size 50000 lmc -m test.xml --add mds --node node4 --mds mds1 --failover --fstype ext3 --dev /tmp/mds1 --size 50000 lmc -m test.xml --add lov --lov lov1 --mds mds1 --stripe_sz 65536 --stripe_cnt 0 --stripe_pattern 0 lmc -m test.xml --add ost --node node2 --lov lov1 --ost ost1 --fstype ext3 --dev /tmp/ost1 --size 100000 lmc -m test.xml --add mtpt --node node3 --path /mnt/lustre --mds mds1 --lov lov1 Then, i config every node: lconf --reformat --node node2 test.xml lconf --reformat --node node4 test.xml lconf --node node3 test.xml Next, i close node4 using poweroff. In node1, i start mds: lconf --node node1 --select mds1=node1 test.xml And in node3 i try to recover mds connection: lconf --recover --select mds1=node1 --tgt_uuid mds1_UUID --conn_UUID NID_node4_UUID --client_UUID node3_UUID test.xml the result is to display: Reconnecting mds1_UUID to NID_node1_UUID ! /usr/sbin/lctl (255): Unfortunately, mds is not recovered. Is there anything i wrong? _________________________________________________________________ ÓëÁª»úµÄÅóÓѽøÐн»Á÷£¬ÇëʹÓà MSN Messenger: http://messenger.msn.com/cn