HP Hitachi Dynamic Link Manager Software - Manual (Page 401)

4. HDLM Operation
377
Perform this operation if necessary. If it is not necessary to check this, go to step 7.
If the SCSI device name is not represented with a hyphen (-), to change the SCSI
device name to a hyphen, wait until the path health checking has been executed
or execute the following
dlnkmgr
command with the AutoPATH_ID of the
HDLM device.
Example:
# /opt/DynamicLinkManager/bin/dlnkmgr online -pathid
AutoPATH_ID
7. Execute the
dlmcfgmgr
utility (
dlmcfgmgr -u
logical_device_file_name_of_HDLM_device) on the relevant HDLM device
whose path was deleted in the above step 2 to unregister the HDLM device.
Path information on the relevant HDLM device is deleted.
The following is an example of executing the
dlmcfgmgr
utility:
# /sbin/dlmcfgmgr -u
name-of-logical-device-file-for-HDLM-device
If you execute the
dlmcfgmgr
utility (
dlmcfgmgr -u
) when a path to the
HDLM device exists (for example, when you change a multi-path configuration
to a single-path configuration), the KAPL10340-E message is output. In this case,
take action according to this message and refer to the
/var/opt/
DynamicLinkManager/log/dlmcfgmgr
n
.log
file (where n is 1 or 2). If the
KAPL10362-W message was output to the
/var/opt/
DynamicLinkManager/log/dlmcfgmgr
n
.log
file, HDLM operations are
not affected. Go to step 8.
8. Refer to the
/var/opt/DynamicLinkManager/log/dlmcfgmgr1.log
or
execute the
dlmcfgmgr
(
dlmcfgmgr -v
) to check if the path mapped with the
relevant HDLM device is deleted.
The following is an example of executing the
dlmcfgmgr
utility:
# /sbin/dlmcfgmgr -v
(6) Changing a Device Managed by HDLM into One Not Managed by HDLM:
The following operation can be done without restarting the host.
To change a device managed by HDLM into one not managed by HDLM:
1.
Stop all accesses to the relevant LU.
2. Execute the HDLM-configuration definition utility (
dlmcfgmgr -v
) to check if
the device you want to exclude from HDLM management is being managed by