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Information about the target audience for this manual.
Describes the structure and organization of the manual.
Provides a fundamental explanation of Hitachi Dynamic Link Manager.
Details the key functionalities and capabilities offered by HDLM.
Lists the types of devices that HDLM can manage and those it cannot.
Explains the system configurations for connecting hosts and storage systems via FC-SAN and IP-SAN.
Describes how HDLM distributes I/O data across multiple paths to balance the load.
Details the procedures for performing failovers and failbacks using path switching.
Explains how HDLM checks path statuses at regular intervals to detect errors.
Describes how HDLM collects and filters error information for troubleshooting purposes.
Explains the audit log function for compliance, security, and standards.
Discusses the compatibility and usage of HDLM within cluster configurations.
Outlines the necessary hardware and software prerequisites for installing HDLM.
Details essential information and prerequisites before proceeding with HDLM installation.
Provides procedures for performing new, re-installation, and upgrade installations of HDLM.
Explains installing HDLM for managing boot disks on SCSI devices and HDLM devices.
Guides on verifying the structure and statuses of paths after HDLM installation or configuration changes.
Describes how to configure HDLM functions like load balancing and error logging.
Details procedures to revert HDLM environment settings to their pre-installation state.
Provides essential notes and guidelines for effectively operating HDLM.
Explains how to perform HDLM operations using various commands.
Details the procedures for manually starting and stopping the HDLM manager process.
Outlines tasks for reconfiguring the HDLM operating environment, including hardware replacements.
Explains the information collected by DLMgetras for analyzing HDLM errors.
Provides troubleshooting steps and resolutions for detected path errors.
Offers guidance on handling and resolving errors related to HDLM programs.
Introduces the dlnkmgr command and its subcommands used for HDLM operations.
Describes the 'clear' operation to reset path statistics like I/O counts and errors.
Explains how to place paths offline using the dlnkmgr command.
Details the procedure for placing offline paths back online using the dlnkmgr command.
Describes how to configure various HDLM operating environment settings.
Explains how to display HDLM program, path, LU, and device information.
Provides an overview of the various utilities provided by HDLM.
Explains the DLMgetras utility for collecting detailed error information for analysis.
Details the dlmcfgmgr utility for managing HDLM configuration, including adding/deleting devices.
Describes the dlmmkinitrd utility for creating initial RAM disk images for HDLM boot disks.
Explains the dlmstart utility used to load drivers and start the HDLM manager after installation.
Covers the installhdlm utility for performing new, upgrade, or re-installation of HDLM.
Provides preliminary information on message IDs and terms used in message explanations.
Lists and explains messages related to HDLM command operations and parameters.
Details messages related to path errors and their causes.
Lists and explains the return codes output by HDLM for various operations.
Provides notes on specific Linux commands and files relevant to HDLM operation.
Offers troubleshooting guidance for products utilizing weak-modules scripts with HDLM.
Explains the functional differences between various versions of HDLM.
Explains technical terms and acronyms used throughout the manual.
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General