HP Hitachi Dynamic Link Manager Software - Manual (Page 244)

3. Creating an HDLM Environment
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(3) Removing Devices From VxVM on a Path Basis
If all the physical paths to one LU go through the same HBA, devices are removed on
a path basis. The procedure for removing devices on a path basis is described below
by using the configuration example shown in Figure 3-25: When the HBA Port of the
Physical Path Connected to a Hitachi Storage System Is the Same As the One
Connected to a Third-party Storage System. This figure shows a configuration that is
recognized by VxVM before devices are removed.