3PAR InForm® OS 2.3.1 Messages and Operator's Guide (320-200181 Rev B, February 2010)

3.16
Understanding Component Numbering
Messages and Operator’s Guide InForm OS Version 2.3.1
Drive chassis are always placed above the storage server backplane enclosure and numbered
according to their position in relation to the backplane, as shown in Figure 3-15.
Figure 3-15. Numbering of Drive Chassis
0003_L_R3
Storage
Server
Backplane
Drive
Chassis
5
4
3
2
1
0
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.