some times it is better to stay quiet thsang.
You didnt help and is also wrong.
in X4 is certified to use Oracle VM. This is why I can have Grid Infra in two guests machines and WLS in anoyher and whahever in other guest machine.
my question is Can I have 2 grid infra on one ODA that is using VM option? This question is not for you thtsang.
I think that technically maybe you can Install two GI Home, but I don't know if Oracle will support this configuration.
why do you want two GI Home ? if you want to install a patch you want different GI homes ?
I don't know about ODA, but Could you create another Virtual server inside this appliance ?
i Got the answer in MOS.
there is no note saying that you could not have 2 GI Homes. The Oracle Support says that you could try to create by your own but is not supported .
The putpose would be to have prpduction and dev envs on same box as you can do in Exadatas. Of course is not the best practice but some customers have a limited budget and wants to start in this world.
Is possible install 2 Clusterware Software (Oracle Grid Infrastructure for a Cluster) on same host, but you can have one Clusterware configured/active a time.
The cluster is a set of host working as single host, so the software cluster manage and control the hosts, if supposedly you had 2 cluster active on same host the both software cluster will have concurrency disputing who manages the hosts and this MUST not occur.
As you can't have a two ORACLE_SID on same host, you can't have two OHAS process on same host.
The customer wants to have another GI Home on this same ODA for development purpose.
You can have multiples RAC environments (i.é Multiples Databases Cluster with differents Oracle Homes) under same Cluster Topology, but if you need a new Cluster environment you will need a new set hosts,shared luns and network to deploy it. i.é You cann't use existent hosts with Cluster configured on it.
Section :Oracle Clusterware Version Compatibility
You can only have one installation of Oracle Clusterware running in a cluster, and it must be installed into its own home (
Grid_home). The release of Oracle Clusterware that you use must be equal to or higher than the Oracle ASM and Oracle RAC versions that are running in the cluster.
*The HOST word used here is where OS and Oracle Software will be installed.
I think you didn't understood my my answer . Sorry for the misunderstood.
I know what you said. Of course you can't. The question is to create to RAC Homes in 4 different machines using Oracle VM . This is possible. The question is if this is supported or possible using VM Templates provided by Oracle.
We can close this thread as I already got answer from Support that it is NOT SUPPORTED.