Open System Services Management and Operations Guide (G06.30+, H06.08+, J06.03+)

Figure 14 OSS Configuration Files, Processes, and Disk Volumes Affected by Changing ZOSSPARM
The ZOSSSERV File
The ZOSSSERV file is an Enscribe file containing the OSS Monitor configuration database that
stores information about the characteristics of each OSS name server. Entries in this file can be
displayed with the SCF INFO SERVER command.This file must be maintained by the system manager
using the SCF ADD SERVER, ALTER SERVER, and DELETE SERVER commands. ZOSSSERV must be
present before the root fileset is first mounted and before the first OSS name server is started.
Entries in the ZOSSSERV file must follow these rules:
• There should always be a #ZPNS entry for the root OSS name server process, $ZPNS. OSS
name servers that manage other filesets must also have entries in this file; use the SCF ADD
SERVER command to add these entries.
• Primary and backup processor numbers should be assigned such that no single processor
failure affects more than one server process pair.
• HP recommends that you specify processors not used by either the OSS Monitor or the FSCK
utility (as specified by the ZOSSPARM file FSCKCPU value).
Certain changes to the ZOSSSERV file take effect only when the corresponding server is stopped
and restarted.
When a default ZOSSSERV file is created by the OSS Monitor, it contains an entry for the OSS
name server process of the root fileset, $ZPNS.
Beginning with RVU G06.10, when HP shipped a system with the OSS environment preconfigured,
the root fileset OSS name server entry differed from the default, as follows:
Initial Values When ZOSSSERV Was Delivered
on a Preconfigured System
Default Values When ZOSSSERV Is Created by
the OSS Monitor
Attribute
01BACKUPCPU
10CPU
Configuration Files 107