Hitachi Dynamic Link Manager Software Users Guide for Linux
If you performed steps 4 and 5, you do not need to restart the host. Go
to step 7.
7. Execute the dlmcfgmgr utility (dlmcfgmgr -v) or the view operation
(dlnkmgr view -drv).
Make sure that all the SCSI device names corresponding to the LU for
which path allocations were cancelled in step 2 are represented with a
hyphen (-) (optional).
The following is an example of executing the dlmcfgmgr utility with the -v
option:
# /sbin/dlmcfgmgr -v
The following is an example of executing the view operation with the -drv
option:
# /opt/DynamicLinkManager/bin/dlnkmgr view -drv
8. Execute the dlmcfgmgr utility (dlmcfgmgr -
ulogical_device_file_name_of_HDLM_device ) on all the HDLM devices
corresponding to the LU for which path allocations were cancelled in step
2 to unregister the HDLM devices.
Path information on the relevant HDLM device is deleted.
The following is an example of executing the dlmcfgmgr utility:
# /sbin/dlmcfgmgr -u logical_device_file_name_of_HDLM_device
9. Check /var/opt/DynamicLinkManager/log/dlmcfgmgr1.log or execute
the dlmcfgmgr utility (dlmcfgmgr -v) to make sure that the HDLM device
that corresponds to the deleted LU was deleted.
The following is an example of executing the dlmcfgmgr utility:
# /sbin/dlmcfgmgr -v
Deleting a Path to an Existing LU
To delete a path to an existing LU (HDLM device):
1. Stop all accesses to the relevant LU.
2. Use the management program of the storage system to delete a path to
the relevant LU.
For more information on deleting a path, see the manual provided with
the storage system.
3. When you want to delete a path to the LU without restarting the host, go
to step 4. When you want to delete a path while restarting the host, go to
step 5.
4. Delete the SCSI device for the path that was deleted in step 2.
Since the host has not been restarted, the SCSI device for the path that
was deleted in step 2 was not deleted. Execute the command for deleting
HDLM Operation
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Hitachi Dynamic Link Manager (for Linux®) User Guide