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Preparing to Install the OpenVMS VAX Operating System

2.3 Preparing for an Installation

Now that you have determined that your hardware and software components are

ready, you can make the necessary preparations for installing the OpenVMS VAX

operating system.

2.3.1 Preparing for an OpenVMS Cluster Environment

If you are installing the OpenVMS VAX operating system in an OpenVMS Cluster

environment, the installation procedure displays information about cluster

conﬁguration. But, because there is no network present on the system at this

point in the procedure, no cluster conﬁguration work can actually be performed at

this time. Before proceeding, review OpenVMS Cluster Systems, which provides

the information you need to answer questions during the installation.

Note

Entering incorrect information during the installation can force you to

repeat the entire installation procedure.

Table 2–1 lists the OpenVMS Cluster information you need and explains how to

obtain that information. For a complete explanation, refer to OpenVMS Cluster

Systems.

Table 2–1 OpenVMS Cluster Information for Installations

Information You Need How to Get It

Type of conﬁguration Conﬁguration types are distinguished by the interconnect device that the VAX

computers in the cluster use to communicate with one another: Computer

Interconnect (CI), Ethernet, DIGITAL Storage Systems Interconnect (DSSI),

or FDDI (Fiber Distributed Data Interface).

DECnet node name and

node address

Determined by the network or system manager for each VAX computer on the

network. See your system or network manager for the DECnet node name and

node address for the VAX computer on which you are installing the OpenVMS

VAX operating system. Refer to the DECnet-Plus for OpenVMS Installation

and Conﬁguration manual for more information.

Allocation class value During the installation procedure you are asked for the ALLOCLASS value of

the VAX computer on which you are installing the OpenVMS VAX operating

system. For example:

Enter a value for MYNODE’s ALLOCLASS parameter:

Refer to OpenVMS Cluster Systems for the rules on specifying allocation class

values. Note that, in a mixed-interconnect cluster environment, the allocation

class value cannot be zero. It has to be a value between 1 and 255. This is

also true for any VAX computer connected to a dual-pathed disk.

When you enter the allocation class value, the installation procedure uses it to

set the value of the ALLOCLASS system parameter automatically.

Quorum disk Refer to OpenVMS Cluster Systems to determine whether you want a quorum

disk in the cluster.

Location for page and

swap ﬁles

Refer to OpenVMS Cluster Systems to determine where the page and swap

ﬁles will be located for the system from which you are installing the OpenVMS

VAX operating system software.

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Preparing to Install the OpenVMS VAX Operating System 2–3