Open System Services Management and Operations Guide (G06.27+, H06.04+)
Introducing Open System Services
Open System Services Management and Operations Guide—527191-003
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Management Tools
Management Tools
Your primary management tool is the Subsystem Control Facility (SCF) module for the 
OSS Monitor, used from the Guardian environment. Reference information for that 
module appears in Section 12, Open System Services Monitor.
Any Guardian-environment command that you can enter at an HP Tandem Advanced 
Command Language (TACL) prompt can also be entered from the OSS environment 
using the gtacl command at an OSS shell prompt. See the gtacl(1) reference 
page either online or in the Open System Services Shell and Utilities Reference 
Manual for additional information about that command.
You might find it convenient to manage the OSS environment from the OSS 
environment. Therefore, you should know something about OSS commands and 
utilities. 
The Open System Services User’s Guide contains tables that show the approximate 
correspondence between commands supported in the Guardian environment and the 
UNIX commands and utilities supported in the OSS environment.
The OSS command set differs from other implementations of UNIX shell commands 
and utilities. Many OSS commands contain HP extensions that display Guardian 
environment information or allow actions that do not exist in the UNIX environment.
Figure 1-1. The Operating System Environments
Note. Before using an OSS command, read the appropriate reference page either online or in 
the Open System Services Shell and Utilities Reference Manual to make sure that the 
command behaves in the way you expect. OSS commands conform to the XPG4 standards, 
but some OSS commands and utilities might have different options and behavior from the 
version of the UNIX operating system that you are familiar with.
VST011.VSD
OSS Environment
Guardian Environment
NonStop Operating System
OSS File System Guardian File System
OSS Shell and Utilities
Guardian products, subsystems, and
command interpreters
OSS Application Program Interface
Guardian Application Program Interface










