Program configuration

Dynamic Link Manager (for Linux®) User Guide

Version
9.0.x
Audience
anonymous
Part Number
MK-92DLM113-64
ft:lastEdition
2025-11-06

HDLM is actually a combination of several programs. Because each program corresponds to a specific HDLM operation, it is important to understand the name and purpose of each program, along with how they are all interrelated.

The following figure shows the configuration of the HDLM programs.

Figure. Configuration of the HDLM programs

The following table lists and describes the functions of these programs.

Table. Functionality of HDLM programs

Program name

Functions

HDLM command

Provides the dlnkmgr command, which enables you to:

  • Manage paths

  • Display error information

  • Set up the HDLM operating environment

HDLM utility

Provides the HDLM utility, which enables you to:

  • Collect error information

  • Define HDLM device configuration information

  • Make an HDLM device available as a boot disk

  • Clear HDLM persistent reservation

  • Specify settings for the HDLM filter driver

  • Perform tasks that are required after the installation of HDLM

  • Re-register HDLM information

  • Collect information about errors that occurred during the installation of HDLM

  • Install HDLM

HDLM manager

Provides the HDLM manager, which enables you to:

  • Configure the HDLM operating environment

  • Request path health checks and automatic failbacks to be performed

  • Collect error log data

HDLM alert driver

Reports the log information collected by the HDLM driver to the HDLM manager. The driver name is sddlmadrv.

HDLM driver

Controls all the HDLM functions, manages paths, and detects errors. The HDLM driver consists of the following:

  • Core logic component

    Controls the basic functionality of HDLM.

  • Filter component

    Sends and receives I/O data. The driver name is sddlmfdrv.