The following are the hardware and software requirements or defaults for an Open HA Cluster configuration:
Operating system – An Open HA Cluster 2009.06 configuration runs only on OpenSolaris 2009.06 software.
Hardware platform – An Open HA Cluster 2009.06 configuration runs on either SPARC based platforms or on 32-bit or 64-bit x86 based platforms.
All nodes in a cluster must run on the same platform. For x86 based platforms, you cannot use both 32–bit machines and 64–bit machines in the same cluster.
Hardware topology – An Open HA Cluster 2009.06 configuration consists of the following hardware components:
Exactly two physical cluster nodes that run on the same subnet
At least one network adapter per node
Shared storage is optional
The creation of a /globaldevices partition for use as the global-devices namespace is incompatible with a ZFS root file system. You must either configure a lofi device to host the global-devices namespace, or create the /globaldevices partition on a UFS root file system.
Administrator role – By default, the initial user account has the Primary Administrator profile.
Network interface manager – By default, Network Auto-Magic (NWAM) is the default network interface manager. However, NWAM is incompatible with Open HA Cluster 2009.06 software and you must disable it before you configure Open HA Cluster 2009.06 software.
DHCP – Open HA Cluster software uses certain network configuration files in ways that are incompatible with running DHCP clients with IPMP. Therefore, cluster nodes cannot be DHCP clients. You must disable DHCP and instead configure a static IP address for the public network.