You are attempting to vMotion a VM, likely using the vSphere web client and likely trying to change host and storage.
/var/log/vmkernel.log on the source ESXi host is showing errors.Â Â Â Specifically this error:
2016-09-24T14:39:57.638Z cpu5:34608)FSS: 5914: Failed to open file ‘vmware.log’; Requested flags 0x2, world: 34608 [vpxa-worker] (Existing flags 0x5, world: 76640135 [vmx]): Busy
/var/log/host.log one source ESXi host is showing that the source machine is an IPv6 IP and the destination IP is an IPv4 IP.Â Like this:
40B70 info ‘Vmsvc.vm:/vmfs/volumes/562578d3-39000d7a-8011-blah/Analyzer/Analyzer.vmx’ opID=78d0fdec-95-54 user=vpxuser] VMotionPrepare: srcMgmtIp=2607:0000:6:8:225:9999:fe00
40B70 info ‘Vmsvc.vm:/vmfs/volumes/562578d3-39000d7a-8011-blahe/Analyzer/Analyzer.vmx’ opID=78d0fdec-95-54 user=vpxuser] VMotionPrepare: dstMgmtIp=184.108.40.206
Fix your IP issues.Â Â Vcenter has added one of your host with its IPv4 address and the other host with its IPv6 address.Â Â Temp fix is to disable IPv6…Â Long term…Â fix your IPv6 issue (remove re-add host).