Hitachi XP P9500 User Manual page 320

The following steps assume that the HBAs whose WWN information is
underlined above are to be replaced.
2 Execute the view operation of the dlnkmgr command (dlnkmgr view -
.
path -hbaportwwn) to check the information about the paths that pass
through the HBAs you want to replace.
See the port WWN information of the HBAs you checked in step 1 and
HBAPortWWN displayed as the execution result to check the host port
number and the bus number displayed in PathName.
In PathName, the leftmost number is the host port number. The number
between the period to the right of the host port number and the next
period is the bus number.
Specify the host port number and the bus number when you place the
path in the Offline(C) status in step 3.
In this execution example, the host port number and the bus number
corresponding to the port WWN information of the HBAs to be replaced
(the underlined section) are shaded.
3 Execute the offline operation of the dlnkmgr command (dlnkmgr
.
offline -hba) to place in Offline(C) status all paths that pass through
the HBA ports that you identified in step 2.
For the -hba parameter, specify the host port number and the bus
number by separating them with a period.
The following shows an example of placing the path (host port number is
0000 and path number is 0000) in the Offline(C) status.
# /opt/DynamicLinkManager/bin/dlnkmgr offline -hba 0000.0000
After you have executed the offline operation, execute the view
operation of the dlnkmgr command (dlnkmgr view -path -hbaportwwn)
to confirm that all the paths passing through the HBAs being replaced are
in Offline(C) status.
# /opt/DynamicLinkManager/bin/dlnkmgr view -path -hbaportwwn
4-24
HDLM Operation
Hitachi Dynamic Link Manager User Guide (for Linux(R))