[RHEV] Cannot start VM without attaching ISO Domain

Issue

• When detaching an ISO Domain from one data center, RHEV is unable to start any VM's on this DC. Is this intended to be like this?
• /var/log/rhevm/rhevm.log looks like below:

2013-05-27 14:04:29,065 INFO  [org.ovirt.engine.core.vdsbroker.IsVmDuringInitiatingVDSCommand] (ajp-/127.0.0.1:8702-11) FINISH, IsVmDuringInitiatingVDSCommand, return: false, log id: 2b6f2e2f
2013-05-27 14:04:29,067 INFO  [org.ovirt.engine.core.bll.VdsSelector] (ajp-/127.0.0.1:8702-11) Checking for a specific VDS only - id:1083378a-c448-11e2-9155-001d090860f0, name:rhevh-example.com, host_name(ip):10.XX.XX.XX
2013-05-27 14:04:29,115 INFO  [org.ovirt.engine.core.bll.RunVmCommand] (pool-3-thread-44) [37de5925] Running command: RunVmCommand internal: false. Entities affected :  ID: 540ec0d5-7d12-499d-857e-184c18ffd27e Type: VM
2013-05-27 14:04:29,131 INFO  [org.ovirt.engine.core.bll.VdsSelector] (pool-3-thread-44) [37de5925] Checking for a specific VDS only - id:1083378a-c448-11e2-9155-001d090860f0, name:rhevh-example.com, host_name(ip):10.XX.XX.XX
2013-05-27 14:04:29,148 INFO  [org.ovirt.engine.core.bll.RunVmCommand] (pool-3-thread-44) [37de5925] Lock freed to object EngineLock [exclusiveLocks= key: 540ec0d5-7d12-499d-857e-184c18ffd27e value: VM, sharedLocks= ]
2013-05-27 14:04:29,148 ERROR [org.ovirt.engine.core.bll.RunVmCommand] (pool-3-thread-44) [37de5925] Command org.ovirt.engine.core.bll.RunVmCommand throw Vdc Bll exception. With error message VdcBLLException: NO_ACTIVE_ISO_DOMAIN_IN_DATA_CENTER