Steps to reproduce:

1. just install version 3.4.11 and starts the zabbix_server service

Result:

Datas are correctly retrieved from 1 of our 2 clusters VMware.

# 5 process for StartVMwareCollectors in zabbix_server.conf

-> Same configuration on the 2 clusters, works fine with 3.4.5 and 3.4.10 version for both clusters.

-> issue is : 

 26411:20180701:224135.090 item "XXXXXX:vmware.hv.datastore.read[\{$URL},\{$UUID},Vmfs_DLO2,latency]" became not supported: Performance counter data is not available.

=> Concerns all performance counters (lantency, pfree, read, write)

I've installed 3.4.10 and it works fine now.