We have a cluster running ESX 3.5 servers. We would like to buy new servers with ESXi 3.5 Embedded.
Can ESX 3.5 and ESXi 3.5 run in the same cluster without loss of function?
yes they can exist together in the environmen and run int he same DRS cluster as long as they have compatible cpus - this is a requirment fomr VMware for vmotion -
I haven't tried it so take this as an uninformed opinion... I'd say yes. You're probably limited by the VMotion constraints more than anything else.
Hello Brian, welcome to the VMware Community forums. HA would not be supported in a mixed cluster.
VirtualCenter 2.5 Update 1 extends support for VMware High Availability (HA) to ESX Server 3i hosts, but currently requires some additional restrictions: swap space must be enabled on individual ESX Server 3i hosts (KB 1004177), and only homogeneous (non-mixed) clusters are supported at this time.
Homogeneous (non-mixed) clusters are fully supported when composed entirely of non-ESXi hosts, or entirely of ESXi hosts. More specifically:
Homogeneous cluster of ESX Server 3.0.x hosts or ESX Server 3.5 hosts or ESX Server 3i hosts are supported.
Heterogeneous cluster of ESX Server 3.0.x and ESX Server 3.5 is supported.
Heterogeneous cluster of ESX Server 3.0.x, ESX Server 3.5, and ESX Server 3i are currently NOT supported.