To change a device managed by HDLM into one not managed by HDLM:
The following operation can be done without restarting the host.
Stop all accesses to the relevant LU.
Execute the HDLM-configuration definition utility (dlmcfgmgr -v) to check if the device you want to exclude from HDLM management is being managed by HDLM.
The following is an example of executing the dlmcfgmgr utility:
# /sbin/dlmcfgmgr -v
If the Management status of the relevant HDLM device is represented as configured in the execution result, this means that the device is managed by HDLM.
Execute the dlmcfgmgr utility (dlmcfgmgr -ological_device_file_name_of_HDLM_device ) on the relevant device you want to exclude from HDLM management.
The specified device is excluded from HDLM management.
The following is an example of executing the dlmcfgmgr utility:
# /sbin/dlmcfgmgr -o name-of-logical-device-file-for-HDLM-device
Refer to /var/opt/DynamicLinkManager/log/dlmcfgmgr1.log or execute the dlmcfgmgr utility (dlmcfgmgr -v) or the view operation (dlnkmgr view -path) of the dlnkmgr command to make sure that the relevant device is no longer managed by HDLM.
The following is an example of executing the dlmcfgmgr utility:
# /sbin/dlmcfgmgr -v