This chapter describes how to install the IBM Parallel System Support
Programs for AIX (PSSP), configure your control workstations, servers and
processor nodes, and initialize the system.
- |Perform the steps in this chapter only if you are installing a new
|system or if you are doing a complete reinstall. Do not perform the
|steps if you are migrating from one level of PSSP or AIX to another
|level. For migration steps, refer to Chapter 4, Migrating the software on your RS/6000 SP system.
- Make sure you have your configuration worksheets complete and available
before you proceed with installation. During the procedure, you are
prompted for network, host name, and configuration data. It is easier
to install the system if you plan your configuration beforehand. Refer
to RS/6000 SP: Planning, Volume 2, Control Workstation and Software
Environment for planning information.
- You can install your system by using either the System Management
Interface Tool (SMIT) or PSSP commands. SMIT is a graphical menu-driven
interface to enter information into the SDR. Experienced users may
prefer to issue the PSSP commands directly. Throughout this chapter,
instructions for both methods are given. Use default options unless
instructed to do otherwise.
- Systems with Default Options Installed or Preloaded Systems
One of the decisions you must make prior to installing your system is how
you want to receive the SP. You have the option of purchasing your SP
with the default software installed or you can purchase one that IBM has
preloaded with software to meet your organization's specific
needs. For more detailed information on these preloaded options, refer
to the "Introduction to system planning" chapter in RS/6000
SP: Planning, Volume 2, Control Workstation and Software
Environment.
- Reserving Port Numbers
Some of the subsystems managed by Syspar Controller (syspar_ctrl)
allocate port numbers from the range 10000 to 10100, inclusive.
Therefore, if any customer subsystem, such as DB2, uses port numbers in this
range, such port numbers must be reserved in /etc/services.
For details, refer to Appendix G, Reserving ports.
- |Restricted Root Access
|As of PSSP 3.2, you have the option of running your SP system with
|an enhanced level of security. With the restricted root access (RRA)
|option enabled, PSSP does not internally issue rsh and rcp
|commands as a root user from a node. Also, PSSP does not automatically
|grant authorization for a root user to issue rsh and rcp
|commands from a node. If you enable this option, some procedures might
|not work as documented. For example, to run HACMP, an administrator
|must grant the authorizations for a root user to issue rsh and
|rcp commands that PSSP otherwise grants automatically. See the
|"Planning for security" chapter in RS/6000 SP: Planning, Volume 2,
|Control Workstation and Software Environment for a description of this
|function and a complete list of limitations.
- |Secure remote commands
|Refer to RS/6000 SP: Planning, Volume 2, Control Workstation and
|Software Environment for more information.
- |If you plan on installing a firewall in your SP, review
|Implementing a Firewalled RS/6000 SP System before starting to
|install your SP. With proper planning, the network and security
|configuration required for a firewall can be implemented during the
|installation. For example, you may want to:
|
- |Determine your trusted and untrusted nodes and configure your SP
|administrative LAN to physically separate the trusted and untrusted sides on
|to two Ethernet subnets before starting the installation. The logical
|configuration of the two Ethernets would be done in Step 37: Enter the required node information.
- |Enable restricted root access at Step 30: Enter site environment information.
- |Enable a secure remote command method at Step 30: Enter site environment information.
|
