HP Hitachi Dynamic Link Manager Software - Manual (Page 398)

4. HDLM Operation
374
The following is an example of executing the
dlmcfgmgr
utility:
# /sbin/dlmcfgmgr -v
(3) Adding a Path to an Existing LU
To add a path to an existing LU (HDLM device):
1.
Use the management program of the storage system to configure an additional
path from an LU mapped with the relevant HDLM device to the relevant host.
For more information on configuring an additional path, see the manual provided
with the storage system.
2. When you want to add a path to the LU without restarting the host, perform step
3 and step 4. When you want to add a path to the LU while restarting the host, go
to step 5.
3. Create a SCSI device for each path configured in step 1.
Since the host has not been restarted, the SCSI device for the path that was added
in step 1 was not created. Execute the command for adding the device shown in
Table 4-3: Adding or Deleting a SCSI Device to manually create a SCSI device.
4. Execute the HDLM-configuration definition utility (
dlmcfgmgr -r
).
Based on the SCSI device created in step 3, the path configured in step 1 is added
as a path for the HDLM device.
The following is an example of executing the
dlmcfgmgr
utility:
# /sbin/dlmcfgmgr -r
5. Restart the host on which the HDLM is installed.
If you performed step 3 and step 4, the host does not have to be restarted. Go to
step 6.
While restarting, the additional path configured in the above step 1 is
automatically added as a path to the relevant HDLM device.
6. Refer to
/var/opt/DynamicLinkManager/log/dlmcfgmgr1.log
or
execute the
dlmcfgmgr
utility (
dlmcfgmgr -v
) to check if the number of paths
of the relevant HDLM device has increased.
The following is an example of executing the
dlmcfgmgr
utility:
# /sbin/dlmcfgmgr -v
(4) Deleting an Existing LU
To delete an HDLM device that corresponds to an existing LU:
1.
Stop all accesses to the relevant LU.
2. Use the management program of the storage system to cancel all of the path