Hi. In ESX 5.0 we are moving VM to another datastore. Then backup cycle started. Horrible thing happened. Locked VMDK disk missing the datastore. Yeah VMDK is deleted or something. We can not understand it. In virtual machine edit settings Harddisk is there. But VMDK missing.
Maybe later ESX releases this problem may be fixed. But i'm recommend if you use storage vmotion, all backup and replication jobs must be disabled.
No need to take risk.
EMC, IBM Storage Specialist - VMCEv9 - Dosbil - Turkey