VMware software and installation requirements
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The VMware vSphere system on which you install Unified Manager requires specific versions of the operating system and supporting software.
Operating system software
The following versions of VMware ESXi are supported:
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ESXi 5.5, 6.0, and 6.5
The following versions of vSphere are supported:
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VMware vCenter Server 5.5, 6.0, and 6.5
See the Interoperability Matrix for the complete and most current list of supported ESXi versions.
The VMware ESXi server time must be the same as the NTP server time for the virtual appliance to function correctly. Synchronizing the VMware ESXi server time with the NTP server time prevents a time failure.
Installation requirements
VMware High Availability for the Unified Manager virtual appliance is supported.
If you deploy an NFS datastore on a storage system that is running ONTAP software, you must use the NetApp NFS Plug-in for VMware VAAI to use thick provisioning.
If deployment fails using your High Availability-enabled environment because of insufficient resources, you may need to modify the Cluster Features Virtual Machine Options by disabling the VM Restart Priority, and leaving the Host Isolation Response powered on.