Storage domain metadata engine.log

2013-11-26 13:04:26,681 INFO
[org.ovirt.engine.core.bll.storage.AddStorageServerConnectionCommand]
(ajp--127.0.0.1-8702-5) Lock Acquired to object EngineLock [exclusiveLocks=
key: 172.16.0.58:/export/VM_EXPORTDOMAIN value: STORAGE_CONNECTION
, sharedLocks= ]
2013-11-26 13:04:26,685 WARN
[org.ovirt.engine.core.bll.storage.AddStorageServerConnectionCommand]
(ajp--127.0.0.1-8702-5) CanDoAction of action AddStorageServerConnection
failed.
Reasons:VAR__ACTION__ADD,VAR__TYPE__STORAGE__CONNECTION,ACTION_TYPE_FAILED_STORAGE_CONNECTION_ALREADY_EXISTS
2013-11-26 13:04:26,686 INFO
[org.ovirt.engine.core.bll.storage.AddStorageServerConnectionCommand]
(ajp--127.0.0.1-8702-5) Lock freed to object EngineLock [exclusiveLocks=
key: 172.16.0.58:/export/VM_EXPORTDOMAIN value: STORAGE_CONNECTION
, sharedLocks= ]
2013-11-26 13:04:26,803 INFO
[org.ovirt.engine.core.bll.storage.DisconnectStorageServerConnectionCommand]
(ajp--127.0.0.1-8702-1) Running command:
DisconnectStorageServerConnectionCommand internal: false. Entities affected
:  ID: aaa00000-0000-0000-0000-123456789aaa Type: System
2013-11-26 13:04:26,805 INFO
[org.ovirt.engine.core.vdsbroker.vdsbroker.DisconnectStorageServerVDSCommand] (ajp--127.0.0.1-8702-1)
START, DisconnectStorageServerVDSCommand(HostName = Xion2, HostId =
de0cd002-cdd1-4ba7-858a-ac4f76667b13, storagePoolId =
00000000-0000-0000-0000-000000000000, storageType = NFS, connectionList = [{
id: null, connection: 172.16.0.58:/export/VM_EXPORTDOMAIN, iqn: null,
vfsType: null, mountOptions: null, nfsVersion: null, nfsRetrans: null,
nfsTimeo: null };]), log id: 483141c2
2013-11-26 13:04:32,936 INFO
[org.ovirt.engine.core.vdsbroker.vdsbroker.DisconnectStorageServerVDSCommand] (ajp--127.0.0.1-8702-1)
FINISH, DisconnectStorageServerVDSCommand, return:
{00000000-0000-0000-0000-000000000000=477}, log id: 483141c2