Deleting An Existing Lu - Hitachi XP P9500 User Manual

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

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 allocations (that is, to delete the paths) to the relevant LU from
ports of the storage system.
For details on canceling path allocations (deleting paths), see the manual
provided with the storage system.
3 If you want to delete an HDLM device that corresponds to the LU without
.
restarting the host, perform steps 4 and 5. If you want to delete the LU
and restart the host, go to step 6.
4 Delete the SCSI device for the path whose allocation was cancelled in
.
step 2.
Since the host has not been restarted, the SCSI device for the path
whose allocation was cancelled in step 2 was not deleted. To delete the
SCSI device, you need to manually execute the command for deleting the
device shown in
4-34.
5 Execute the HDLM-configuration definition utility (dlmcfgmgr -r).
.
Apply, to the HDLM device, the information about the SCSI device that
was deleted in step 4.
The following is an example of executing the dlmcfgmgr utility:
# /sbin/dlmcfgmgr -r
6 Restart the host on which HDLM is installed.
.
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).
Table 4-3 Adding or Deleting a SCSI Device on page
HDLM Operation
Hitachi Dynamic Link Manager User Guide (for Linux(R))
4-37