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Creating Startup and Shutdown Files
HP Integrity NonStop NS-Series Operations Guide—529869-005
16-4
$ZHOME
•
Is preconfigured on your system during system generation
$ZHOME
The $ZHOME process is a process pair that provides a reliable home terminal to which
processes can perform write operations. The $ZHOME process can be used by
processes that must write to the system console but do not require a response.
$ZHOME is preconfigured on your system by the CONFBASE file. $ZHOME is a
generic process that is part of the SCF Kernel subsystem. Note the following about the
configuration of $ZHOME:
•
The $ZHOME process is configured with $YMIOP.#CLCI as its HOMETERM,
INFILE, and OUTFILE.
•
Because $ZHOME acts as a reliable home terminal designed to interact with the
system console, $YMIOP.#CLCI, HP recommends that you do not change its
configuration. Most important:
°
Do not specify $ZHOME for the INFILE, OUTFILE, or HOMETERM for the
$ZHOME process.
°
Never specify $ZHOME for the INFILE for a process. The $ZHOME process
returns the FEINVALOP error (file-system error 2) in response to any read
operation.
•
Generic processes started by the $ZPM persistence manager inherit
$YMIOP.#CLCI as the HOMETERM, INFILE, and OUTFILE unless these attributes
are changed in the configuration record for the generic process. HP recommends
that you configure most NonStop Kernel and system-level generic processes to
use $ZHOME for the HOMETERM and OUTFILE.
$ZHOME Alternative
Instead of $ZHOME, you might want to use the optional NonStop Virtual Hometerm
Subsystem (VHS) product if both of the following conditions are true:
•
The processes you are configuring cannot handle error responses returned if
$YMIOP.#CNSL or $YMIOP.#CLCI is not available.
•
The process must perform read operations to the device.
Example Command Files
This section describes and shows examples of command files that can be used to start
up and shut down the server:
•
Examples and sample programs are for illustration only and might not be suited for
your particular purpose.