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The dlmcfgmgr Utility for Managing the HDLM Configuration

This utility makes the HDLM driver recognize the contents of the HDLM driver

configuration definition file (/kernel/drv/dlmfdrv.conf) dynamically

without restarting the host. The following table lists the operations to be

performed and not to be performed.

Table 7-2 Configuration Changes Applicable and Not Applicable to the

dlmcfgmgr Utility for Managing the HDLM Configuration

Applicable operation

Inapplicable operation

Adding a new LU

Managing the LU that has been

removed from HDLM management

Adding a path

#

Deleting an existing LU (in Solaris

10 and Solaris 11)

Deleting an existing LU (in Solaris 8 or

Solaris 9)

Changing the settings of an existing LU

(changing an LUN mapping or storage

port)

Deleting a path

Removing an existing LU from HDLM

management

#

Solaris 8 and Solaris 9 are not supported when a dynamic path is added

because a new HBA was added.

HDLM can use an LU, once it is recognized by the HDLM driver, without

restarting the host. In Solaris 10 or Solaris 11, the HDLM devices for the LUs

that were disconnected from the host can be deleted.

If the definition of the HDLM driver configuration definition file (/kernel/drv/
dlmfdrv.conf) has been changed due to configuration changes such as

deleting LUs or changing or deleting paths (in Solaris 8 or Solaris 9), or by

changing or deleting paths (in Solaris 10), then these changes are not

applicable to the the dlmcfgmgr utility and are not reflected in the HDLM

driver. Restart the host with the reconfiguration option specified, and then

change the configuration.

Executing the dlmcfgmgr utility outputs the KAPL10373-I message. Entering
y in response to this message performs dynamic reconfiguration of the HDLM

devices, deletes the logical device files for the sd or ssd devices managed by

HDLM, and then deletes the logical device files for the HDLM devices which

correspond to the LUs deleted from HDLM management. Also, the detailed

information is output to the /var/opt/DynamicLinkManager/log/
dlmcfgmgr1.log. Entering n in response to this message cancels the dynamic

reconfiguration processing.

The dlmcfgmgr utility is valid in Solaris 8 version 1/01 or later, Solaris 9,

Solaris 10, or Solaris 11 system.

Format

/opt/DynamicLinkManager/bin/dlmcfgmgr { -a | -h }

Utility Reference

7-17

Hitachi Dynamic Link Manager (for Solaris) User Guide

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