Hitachi Dynamic Link Manager Software Users Guide for Linux

Overview of the Utilities
HDLM provides the following utilities:
• The DLMgetras utility for collecting HDLM error information
When an error occurs, this utility collects the files that contain information
to be submitted to your HDLM vendor or maintenance company. For
details on the DLMgetras utility, see
DLMgetras Utility for Collecting HDLM
Error Information on page 7-3.
• The dlmcfgmgr HDLM-configuration definition utility
This utility enables you to add, update, or delete information that HDLM
requires to manage paths. For details on the dlmcfgmgr utility, see
dlmcfgmgr Utility for Managing the HDLM Configuration on page 7-22.
• HDLM device name replacement utility (dlmchname)
This utility changes an HDLM device name. Before changing an HDLM
device name, stop access to the HDLM device. When changing the name
of an HDLM device that is used as a boot disk, restart the host after the
utility is executed. For details about the dlmchname utility, see
dlmchname
HDLM Device Name Replacement Utility on page 7-31.
• The dlmmkinitrd utility for supporting a boot disk
This utility creates an initial RAM disk image file for using an HDLM device
as a boot disk. For details on the dlmmkinitrd utility, see dlmmkinitrd
Utility for Supporting a Boot Disk on page 7-33.
• The dlmpr utility for clearing HDLM persistent reservation
If the persistent reservation of the LU is not canceled for some reason,
this utility clears the reservation key to cancel the persistent reservation.
For details on the dlmpr utility, see
dlmpr Utility for Clearing HDLM
Persistent Reservation on page 7-35.
• The dlmsetopt utility for setting HDLM driver option
This utility changes the settings for the HDLM filter driver. Restart the
host machine to apply the changed set values. For details on the
dlmsetopt utility, see
dlmsetopt Utility for Setting HDLM Driver Options
on page 7-37.
• The dlmupdatesysinit utility for updating system scripts
This utility re-registers HDLM information that is lost as a result of
updating the initscripts package. For details, see dlmupdatesysinit
Utility for Updating System Scripts on page 7-41.
• The dlmstart utility for starting HDLM
This utility performs the following operations that are required after the
installation of HDLM:
¢
Loading an HDLM alert driver and a filter driver
¢
Configuring an HDLM device
¢
Starting the HDLM manager
For details, see
dlmstart Utility for Starting HDLM on page 7-40.
7-2
Utility Reference
Hitachi Dynamic Link Manager (for Linux®) User Guide