DCE Installation, Configuration, and Management Guide

Preparing to Install NonStop DCE
HP NonStop DCE Installation, Configuration, and Management Guide—429552-005
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Preparing the Client Machine
Virtual host cloning during installation is a process that creates links between virtual
host files in the OSS file system instead of duplicating the files for each virtual host.
The links allow one copy of a file to be used by more than one virtual host, which saves
disk space.
Cloning creates hard links to all read-only and executable files of the master host
except the cdsd and convert_cds_db files. Those two files are copied to the clone
and separately recompiled using NonStop SQL/MP if needed.
Preparing the Client Machine
Before installing NonStop DCE, configure a DCE client machine:
1. Verify that conventional TCP/IP or Parallel Library TCP/IP is configured and that
the default host file location, $SYSTEM.ZTCPIP.HOSTS, is used.
2. For the TNS version of DCE, ensure that a separate TCP/IP process name of the
form $ZTCnn is used for each virtual host. For the TNS/R and TNS/E versions of
DCE, ensure that a separate TCP/IP process name (for conventional TCP/IP) or
TCPSAM process name (for Parallel Library TCP/IP) of the form $ZTCnn is used
for each virtual host.
3. Verify that the Guardian file $SYSTEM.ZTCPIP.HOSTS contains an entry for each
virtual host to be configured. This entry should contain the system IP address, the
system name, and the hostname, in lowercase letters. For example:
130.252.136.24 sysname hostname
4. Verify that each hostname and hostid have been initialized by entering these
commands beginning at a HP Tandem Advanced Control Language (TACL)
prompt:
SCF
1-> ASSUME PROCESS $ZTCnn
2-> INFO,DETAIL
where $ZTCnn and nn matches an entry in $SYSTEM.ZTCPIP.HOSTS. If
hostname is not listed or is not in lowercase letters, enter the following Subsystem
Control Facility (SCF) command using the appropriate process name and
hostname:
ALTER PROCESS $ZTCnn, HOSTNAME "hostname"
If hostid is not specified, enter the following SCF command using the appropriate
process name and IP address:
ALTER PROCESS $ZTCnn, HOSTID ip-address
Verify that the system TCP/IP startup file contains these two SCF ALTER
commands. (These commands apply to a DCE configuration on the first subnet of
conventional TCP/IP.)