Open System Services Management and Operations Guide (G06.29+, H06.07+)

Introducing Open System Services
Open System Services Management and Operations Guide—527191-005
1-9
Components to Be Managed
Components to Be Managed
You need to manage the software described in the following subsections:
•
Input/Output Utilities on page 1-9
•
OSS Security on page 1-9
•
OSS File-System Components on page 1-10
•
Interprocess Communication Facilities on page 1-11
Input/Output Utilities
Input/output utilities include:
•
OSSTTY Servers on page 1-9
•
Terminal Helper Servers on page 1-9
OSSTTY Servers
Guardian administrative applications or OSS applications at your site might require you
to make one or more copies of an OSSTTY server available for redirecting OSS
standard files. The concept of redirection is described in Redirecting OSS Standard
Files on page 6-27; the command to start a copy of OSSTTY is described in Starting
OSSTTY on page C-1. Other than deciding how many copies of OSSTTY you need to
run simultaneously, there are no management tasks associated with OSSTTY.
Terminal Helper Servers
Both OSSTTY and Telserv terminal processes can perform nonblocking input and
output through the OSS file system because such communication is monitored and
managed using a terminal helper process.
A terminal helper process named $ZTTnn runs in each processor (nn indicates the
processor number). The terminal helper process starts automatically when the
processor starts; if a terminal helper process terminates abnormally, it takes down the
processor in which it runs.
The processor running a terminal helper server process can be shut down without first
stopping the process, but you should stop all applications using that processor for
terminal input or output first. There are no management tasks associated with the
terminal helper server processes.
OSS Security
Security for the OSS environment is configured and managed through the optionally
licensed Safeguard product. The use of Safeguard is described in Section 8, Managing
Security.