HP 3PAR F-Class, T-Class, StoreServ 10000 Storage Troubleshooting Guide (QL226-96953, May 2013)

Drive chassis are always placed above the storage system backplane enclosure and numbered
according to their position in relation to the backplane, as shown in Figure 15 (page 49).
Figure 15 Numbering of Drive Chassis
NOTE: For systems occupying multiple cabinets, drive chassis numbers continue at the bottom
of the next cabinet and progress through the top of the cabinet.
Figure 16 (page 20) and Figure 17 (page 20) illustrate individual drive chassis components and
how they are numbered. Fibre Channel ports in the FC-AL adapters at the sides of the drive chassis
enable connection to the controller nodes.
Understanding Component Numbering 19