You can have two or three ESXi hosts in a VSA cluster. Each host must meet the hardware configuration requirements to join a VSA cluster.
|Hardware||VSA Cluster Requirements|
|Configuration||All ESXi hosts must have the same hardware configuration.|
4 NIC ports must be available on each ESXi host. You can meet this requirements with one, two, three, or four Gigabit or 10Gb Ethernet NICs per ESXi host. To achieve NIC redundancy, you should have at least two Ethernet adapters on an ESXi host. Installing more than two NICs depends on the availability of embedded NICs and additional PCI Express slots on the motherboard. The following NIC combinations are supported:
You can have more than 4 NIC ports per ESXi host but not less than 4.
|RAID controller||A RAID controller
Note: See the VSA Release Notes for supported disk and RAID combinations.