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QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
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H
hamctrl
Control a high-availability manager

QNX Momentics IDE User's Guide
This User's Guide describes version 8.0 of the Integrated Development Environment (IDE) that's part of the QNX Tool Suite.
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        High-availability manager
      - hamctrl
        Control a high-availability manager
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hamctrl

QNX SDP8.0Utilities ReferenceUtilities

Control a high-availability manager

Note:

You must be logged in as root to start this utility.

Syntax:

hamctrl [+heartbeat] [-heartbeat] [=heartbeat] [-stop] 
        [+|-verbose] [=verbose]

Runs on:

QNX OS

Options:

+heartbeat: Resume the heartbeat handling for the high availability manager (HAM).
-heartbeat: Suspend the HAM's heartbeat handling.
=heartbeat: Query the HAM's current state of heartbeat handling.
-stop: Stop the HAM.
+|-verbose: Increase or decrease the HAM's verbosity.
=verbose: Get the HAM's current verbosity.

Description:

You can use the hamctrl utility to control or stop a high-availability manager, ham.

Page updated: August 11, 2025