Hitachi Dynamic Link Manager Software Users Guide for AIX (7.6)
Table Of Contents
- User Guide for AIX®
- Contents
- Preface
- Overview of HDLM
- HDLM Functions
- Devices Managed by HDLM
- System Configuration
- LU Configuration
- Program Configuration
- Position of the HDLM Driver and hdisk
- Distributing a Load Using Load Balancing
- Performing Failovers and Failbacks Using Path Switching
- Monitoring intermittent errors (functionality when automatic failback is used)
- Detecting errors by using path health checking
- Distributing a Load by Using the Dynamic I/O Path Control Function
- Error management
- Collecting Audit Log Data
- Integrated HDLM management using Global Link Manager
- Cluster support
- Creating an HDLM Environment
- HDLM System Requirements
- Flow for Creating an HDLM Environment
- Types of HDLM Installation
- Notes on Creating an HDLM Environment
- Installing HDLM
- Available Installation Methods
- Preparations for a New Installation of HDLM
- Performing a New Installation of HDLM
- Preparations for an Upgrade Installation or Re-installation of HDLM
- Performing an Upgrade Installation or Re-installation of HDLM
- Migrating from HDLM Version 5.8.1 or Earlier to Version 5.9 or Later
- Installing HDLM in a PowerHA 6.1 Environment
- Installing HDLM in a PowerHA 7.1 Environment
- Performing an Unattended Installation of HDLM
- Checking the Path Configuration
- Setting up HDLM
- Setting up Integrated Traces
- Notes on Using the Hitachi Network Objectplaza Trace Library
- Displaying the Hitachi Network Objectplaza Trace Library setup menu
- Changing the Size of Integrated Trace Files
- Changing the Number of Integrated Trace Files
- Changing the Buffer Size Per Monitoring Interval Duration
- Adjusting the Number of Messages to be Output Per Monitoring Interval
- Finishing the Hitachi Network Objectplaza Trace Library Settings
- Applying the Hitachi Network Objectplaza Trace Library Settings
- About the Reservation Policy
- Settings for Using PowerHA
- Settings for Using GPFS
- Settings for Using Oracle RAC 10g or Oracle RAC 11g
- Settings for Using VCS
- Removing HDLM
- HDLM Operation
- Notes on Using HDLM
- Displaying Path Information
- When a Path Error Is Detected
- Storage System
- Notes on Shutting Down a Host
- Notes on Errors in a Host
- Notes on Enabling Both Primary and Secondary Volumes to Be Viewed From the Same Server
- Notes on an LVM Mirror Configuration
- Notes on When the OS Functionality in Not Available in a Boot Disk Environment
- Notes on Replicating a System
- HDLM Operations Using Commands
- Notes on Using Commands
- Viewing Path Information
- Changing the Status of Paths
- Viewing LU Information
- Displaying the Correspondences Between hdisks, OS Management Path IDs, and LDEVs
- Initializing Statistical Information for Paths
- Viewing and Setting Up the Operating Environment
- Viewing License Information
- Updating the License
- Viewing HDLM Version Information
- Viewing HDLM Component Information
- Starting and Stopping the HDLM Manager
- HDLM Resident Processes
- Changing the Configuration of the HDLM Operating Environment
- Notes on Using HDLM
- Troubleshooting
- Command Reference
- Overview of the HDLM Command dlnkmgr
- clear (Returns the Path Statistics to the Initial Value)
- help (Displays the Operation Format)
- offline (Places Paths Offline)
- online (Places Paths Online)
- set (Sets Up the Operating Environment)
- view (Displays Information)
- add (Adds a Path Dynamically)
- delete (Deletes a Path Dynamically)
- Utility Reference
- Overview of the Utilities
- DLMgetras Utility for Collecting HDLM Error Information
- dlmchpdattr Utility for Changing HDLM Default Settings
- dlmgetrasinst Utility for Collecting HDLM Installation Error Information
- dlminstcomp Utility for HDLM Component Installation
- dlmmigsts Utility for Assisting HDLM Migration
- dlmodmset Utility for Setting the HDLM Execution Environment ODM
- dlmpostrestore Utility for HDLM Restoration Support
- dlmpr Utility for Clearing HDLM Persistent Reservation
- dlmpremkcd Utility for Preparing for a System Backup
- dlmpreremove Utility for Executed Before Removing HDLM
- dlmrmdev Utility for Deleting HDLM Drivers
- dlmrmprshkey Utility for Clearing HDLM Persistent Reservation (Shared-Host Methodology)
- installhdlm Utility for Installing HDLM
- installux.sh Utility for HDLM Common Installer
- Messages
- Before Viewing the List of Messages
- KAPL01001 to KAPL02000
- KAPL03001 to KAPL04000
- KAPL04001 to KAPL05000
- KAPL05001 to KAPL06000
- KAPL06001 to KAPL07000
- KAPL07001 to KAPL08000
- KAPL08001 to KAPL09000
- KAPL09001 to KAPL10000
- KAPL10001 to KAPL11000
- KAPL11001 to KAPL12000
- KAPL13001 to KAPL14000
- KAPL15001 to KAPL16000
- Return Codes for Hitachi Command Suite Common Agent Component
- Functional Differences Between Versions of HDLM
- Differences Between HDLM Version 5.9 or Later and Version 5.8.1 or Earlier
- Add-in HDLM Driver Module
- Simplifying the HDLM Environment Configuration and Operation Procedures by Changes to the Logical Device Files
- Changing the HDLM Environment Configuration and Operation Procedures by Changes to the Logical Device Files
- Migrating Reservation Control Settings
- Support for a Boot Disk Environment
- About Settings when Upgrading the OS
- Changing a Virtual I/O Server's Method of Recognizing Virtual SCSI Disks
- Acronyms and abbreviations
- Glossary
- Index
Legend:
Optional: If a key and its setting are not specified, one of the following
values will be used:
¢
For a new installation
The default value will be used.
¢
For an upgrade installation or re-installation:
The previous setting will be inherited.
Note:
Setting of audit logs is not supported.
#1
Enter one key and one setting per line.
#2
If the value is not of an allowable type, an error will occur.
For details about the functions set by these keys, see set (Sets Up the
Operating Environment) on page 6-17.
#3
You can specify this key only in the following cases:
¢
For a new installation:
When on is specified for the auto_failback key in the installation
information settings file
¢
For an upgrade installation or re-installation:
When on is specified for the auto_failback key in the installation
information settings file, or when automatic failback is enabled in the
installation pre-settings
#4
If you want to enable intermittent error monitoring, specify this key after
specifying the auto_failback and auto_failback_interval keys.
#5
The checking interval can be set regardless of whether the dynamic I/O
path control function is enabled or disabled.
The following shows an example of an edited installation information settings
file.
[INSTALLATION_SETTINGS]
installfile_location=/dev/cd0
logdir=/var/tmp
licensekeyfile=/var/tmp/hdlm_license
licensekey=/var/DLM/dlm.lic_key
driver_config=y
restart=n
[DISK_DEFAULT_SETTINGS]
reserve_policy=PR_exclusive
[ODM_SETTINGS]
odm_lun_reset=off
Utility Reference
7-41
Hitachi Dynamic Link Manager User Guide for AIX
®