3.34 is pretty old (more than two years now). I wouldn't run vSphere 5 with anything older than 3.36. The key here is to disable VAAI in ESXi 5 which can be done on the command line using these three commands (do them one at a time):
To Disable VAAI in ESXi 5.X
esxcli system settings advanced set --int-value 0 --option /DataMover/HardwareAcceleratedMove
esxcli system settings advanced set --int-value 0 --option /DataMover/HardwareAcceleratedInit
esxcli system settings advanced set --int-value 0 --option /VMFS3/HardwareAcceleratedLocking