HP StorageWorks SAN Virtualization Services Platform Administrator Guide (5697-0934, May 2011)

The table includes at least one entry for every path (for example, I_T_L nexus) from the DPM to the
physical disk. In most cases, there may be one more entry than expected for the same LUN; if so,
the extra entry, typically the one with the higher “Index” (first column) of the two, indicates that
the path is currently in active use for I/Os.
Each entry shows the initiator WWPN on the DPM, the target WWPN of the EVA or MSA controller,
and the LUN. Make sure each odd-numbered DPM port can see all back-end LUs provisioned to
this port. Note that a back-end LU may be seen multiple times through different EVA or MSA
controller ports. Repeat the same process for all DPMs.
Fault isolation 109