I have a small 2 host cluster that started with local storage only. When I try and storage vmotion machines from 1 of the hosts to the SAN it times out at 27%. Other host works perfectly.
I can do a vmkping across my vMotion network between the 2 hosts, so I know they are communicating.
Can you attached the vmkernel.log file, located at /var/log/on the ESXi host.
A virtual machine and its host must meet resource and configuration requirements for the virtual machine disks to be migrated with Storage vMotion.