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Introduction
HP NonStop S-Series Hardware Installation and FastPath Guide—541880-001
1-55
Installation Overview
System Startup
Startup and Shutdown Files
Startup and shutdown files automate starting and stopping all processes on the
system. There are two types of startup files: the CIIN file, which can be executed
automatically during system load, and all other startup files, which can be invoked by
an operator or by another startup file.
Automating system shutdown aids the operator in bringing the system to an orderly
halt. You can implement the system shutdown sequence with a collection of shutdown
files, each with a specific purpose. The shutdown file sequence reverses the order of
commands in the startup file sequence: applications are shut down first, followed by
the print spooler and other system software.
Create the startup and shutdown files now if you just installed a new system and
previously had no other system to create these files. To create and modify startup and
shutdown files, see the NonStop S-Series Planning and Configuration Guide.
System Load Paths
Each system in a standard configuration ships with these startup characteristics:
•
$SYSTEM disks are located in the system enclosures containing processors 0 and
1.
•
System load paths are configured.
•
The CIIN function is enabled.
If the automatic system load is not successful using one load path, the system load
task attempts to use another path and keeps trying until all possible paths have been
used or the system load is successful. Eight paths are available for loading. Table 1-7
describes each load path in order of use.
Table 1-7. System Load Paths in Order of Use
Data Travels
Load Path Description From To Processor Over ServerNet Fabric
1 Primary $SYSTEM-P 0 X
2 Backup $SYSTEM-P 0 Y
3 Mirror $SYSTEM-M 0 Y
4 Mirror backup $SYSTEM-M 0 X
5 Primary $SYSTEM-P 1 X
6 Backup $SYSTEM-P 1 Y
7 Mirror $SYSTEM-M 1 Y
8 Mirror backup $SYSTEM-M 1 X