HP Integrity NonStop H-Series - Manual (Page 366)

DSM/SCM Architecture and Environment
DSM/SCM User’s Guide — 529846-014
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Schedule Manager (SM)
The Schedule Manager is a host and target static server that:

Ensures activities take place in the proper order

Provides delayed scheduling of requests

Provides persistence for the other server classes
Input Supervisor (IS)
The Input Supervisor runs as a host dynamic server class. The major functions of the
IS are:

Archiving new software from sources such as RVUs, SPRs, third-party and
customer new versions or updates, and loading the database with information
referencing the software

Loading target snapshot information into the host database
Configuration Builder (CB)
The Configuration Builder runs as a host dynamic server class. It performs the steps to
build and package software for a software revision, including:

Building the software revision, which includes running a system generation
program if necessary

Placing the files built by a system generation program into the archive

Creating the activation package
Target Activator (TA)
The Target Activator runs under a target dynamic server class. It performs all
DSM/SCM target functions, including:

Placing and securing new software on the target subvolumes

Saving the previous software revision so a backout can be performed

Building and packaging a snapshot

Retrieving operator instructions from the activation package

Performing cleanup