HP Hitachi Dynamic Link Manager Software - Manual (Page 213)

4. HDLM Operation
189
Figure 4-1: Using the command to confirm that an LU has been added
5. For the new LU, write a signature, create partitions, and then format it.
Note:
The PathID is determined by the system choosing the smallest, available number
that is not already in use for another path. For example, when a path is deleted and
then a new path is added, the PathID for the added path might not be the same
number as the deleted PathID.
When MSCS is used
1. Add an LU.
2. Stop node B.
3. On node A, perform the steps shown in When MSCS is not used.
4. Stop node A, and then start node B.
5. On node B, perform the steps shown in When MSCS is not used.
When you create a partition, assign the same drive letter as the one assigned for
node A in step 3.
6. Stop node B, and then restart node A.
7. On node A, register the new LU in MSCS, and set it up.