T2000 Sever, Zones/Containers or LDOM's?

I'm getting ready to deploy several T2000 servers. One requirement is Solaris 8, but Solaris 8 will not run on the T2000. I was planning on implementing Containers and install Solaris 8 in the Container. However, I was just told by a co-worker that Containers will not run on the T2000 and that I have to use LDOM's, is that correct?
Thanks.
Daryl Rose

Dynamic Domains (Hardware Domains) are implemented at the hardware level and split the hardware.
LDOMS are implemented at the firmware level and split the hardware.
Containers are a combination of Zones (OS isolation) and Resource Management (CPU, RAM).
xVM is a hypervisor and/or virtual machine technology.
If you can install Solaris 10 (or OpenSolaris) you can install Containers. Works on SPARC and x86. For example you could have 2 LDOMS on a T2000 to split the box in to 2 physical servers (there are some best practices to this, mainly for fault tolerance and bandwidth). Then install 2 Solaris 10 instances. Then create 5 Containers on each Solaris 10 installation.
Not everything runs LDOMS. Everything will run a Container.
Cheers
Neil

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    To me, your only option is the Global Zone. Which pretty much destroys the argument for having Zones on a Solaris system, unless you can host other non-Oracle application on the other Zones.
    2 The idea of RAC we are looking at is to have multiple Oracle Installations on top of native clustering solution say veritas clusters/Sun Clusters. Do we still need to have Oracle Cluster solution Clusterware (ORACRS) on top of this to achieve Oracle Clustering? Will I be able to install Oracle as a standalone installation on top of native clustering solution say veritas clusters/Sun Clusters?I am not sure the term 'native' is correct. All 'Cluster' software is low level, and has components that run within the operating system. Whether this is Sun Cluster, Veritas Cluster Server, or Oracle Clusterware. They are all as 'native' to Solaris as each other. They all perform the same function for Oracle RAC around Cluster management - which nodes are members of the cluster, heartbeats between nodes, reliable fast message delivery, etc.
    You only need one piece of Cluster software. So pick one and use it. If you use the Sun or Veritas cluster products, then you do not need the Oracle Clusterware software. But I would use it, because it is free (included with RAC), is from Oracle themselves and so guaranteed to work, is fully supported, and is one less third party product to deal with. Having an all Oracle software stack makes things simpler and more reliable, as far as I am concerned. You can be sure that Oracle will have fully tested RAC on their own Clusterware, and be able to replicate any issues in their own support environments.
    Officially the Sun and Veritas products will work and are supported. But when you get a problem with your Cluster environment, who are you going to call? You really want to avoid "finger pointing" when you have a problem, with each vendor blaming the cause of the problem on another vendor. Using an all Oracle stack is simpler, and ensures Oracle will "own" all your support problems.
    Also future upgrades between versions will be simpler, as Oracle will release all their software together, and have tested it together. When using third party Cluster software, you have to wait for all vendors to release new versions of their own software, and then wait again while it is tested against all the different third party software that runs on it. I have heard of customers stuck on old versions of certain cluster products, who cannot upgrade because there are no compatible combinations in the support matrices between the cluster product and Oracle database versions.
    I will configure Clustering Solution like VRTS/SunCluster in Active-Passive, then have 3 Oracle installations on Node A, another 3 on Node B. As I said before, these 3 Oracle installations will actually all be on the same Global Zone, because RAC will not go into Local Zones.
    John

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