ESXi 5.5 update 2068190
/var/log # tail -f vmkernel.log |grep WARNING
2014-11-08T03:11:10.313Z cpu5:3343193)WARNING: VMotion: 3680: 1415416254017461 S: failed to end preCopy stream: IO was aborted
2014-11-08T03:11:10.313Z cpu5:3343193)WARNING: Migrate: 269: 1415416254017461 S: Failed: IO was aborted (0xbad00e0) @0x41801e280b11
2014-11-08T03:11:10.328Z cpu20:3343190)WARNING: Migrate: 5289: 1415416254017461 S: Migration considered a failure by the VMX. It is most likely a timeout, but check the VMX log for the true error.
vCenter
A general system error occurred: The migration has exceeded the maximum switchover time of 8 second(s). ESX has preemptively failed the migration to allow the VM to continue running on the source. To avoid this failure, either increase the maximum allowable switchover time or wait until the VM is performing a less intensive workload.
