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Chapter 4 # Connecting the Installation Hardware and Cluster Hardware For examples on how to connect the installation hardware and cluster hardware for different types of installations, and how to connect the cluster hardware and the development host, see the following sections: Installation Server Connecting the Hardware for Installation Development Host ## Installation Server You require an installation server for all installation methods. An installation server enables you to install the Solaris operating system and the Foundation Services on the cluster using the Solaris JumpStart™ software. The installation server requires the following:
Hardware requirements | UltraSPARC platform Two network devices If the installation server is part of the public network, one network device is used to connect the installation server to an external network. The other network device is used to connect the installation server to the cluster network. If the installation server is a portable machine, you require only one network device to connect to the cluster network.
Operating system | Solaris operating system. For information about supported software versions, see the Netra High Availability Suite Foundation Services 2.1 6/03 Release Notes
Software requirements | Perl Version 5, which is available with the Developer Solaris Software Group
Disk capacity | Minimum 1.5 Gbytes for a Solaris software distribution 4 Gbytes for an eight node cluster. This size does not include applications that you might want to deploy on the cluster.
Free space | Minimum 1.5 Gbytes after the Solaris operating system has been installed
## Connecting the Hardware for Installation For an example of how to connect the cluster hardware and the installation hardware, see Figure 4-1 . The nodes of your cluster are connected to each other through switches. You can connect the console of each node to the terminal server to provide access to the console of the node. To install the software on the cluster, connect the installation server to the cluster network through a switch. If necessary, connect the development host to the external network. In addition, you can directly connect the serial ports of the master-eligible nodes. This connection prevents a split brain situation, where there are two master nodes in the cluster because the network between the master node and the vice-master node fails. The direct link between the master-eligible nodes must then be configured as described in the Netra High Availability Suite Foundation Services 2.1 6/03 Custom Installation Guide. The cluster nodes must not be on the same physical wire as the nodes of another cluster. When a diskless node boots, it sends a broadcast message to find the master node. If two clusters share the same wire, the diskless node could receive messages from the wrong master node. The following diagram illustrates an example cluster of three nodes: two master-eligible nodes and a node that can be either diskless or dataless. Figure 4-1 Example of Connecting the Hardware for Installation For more information about installation, see the Netra High Availability Suite Foundation Services 2.1 6/03 Custom Installation Guide. ## Development Host If you are developing applications that you plan to deploy on a cluster running the Foundation Services, you can install a development host. The development host is an optional hardware component. If you are developing applications using the Cluster Membership Manager (CMM) API, you might require specific software. For more information about CMM and the specific software required to develop applications for your cluster, see the Netra High Availability Suite Foundation Services 2.1 6/03 CMM Programming Guide. To connect the development host to the cluster, see Connecting the Hardware for Installation. The development host requires the following:
Hardware requirements | UltraSPARC platform One network device
Operating system | Solaris operating system
Software requirements | Forte™ Developer 6 Software Suite (at least Update 1) Java 2 Software Development Kit Standard Edition
Disk capacity | Minimum 1.5 Gbytes for a Solaris software distribution
Free space | Minimum 1.5 Gbytes after the Solaris operating system has been installed
For further information on sofware versions, see the Netra High Availability Suite Foundation Services 2.1 6/03 Release Notes.
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