HP 3PAR T-Class Installation and Deinstallation Guide

Handling the Drive Magazines
When handling the drive magazines, observe the following precautions:
• Always use a wrist grounding strap. A wrist grounding strap is provided with the cabinet.
Attach the grounding clip directly to an unpainted surface of the cabinet.
• Always use both hands when carrying a drive magazine.
• Avoid contact between drive magazines and clothing that can carry an electrostatic charge.
• Observe any warning labels placed on the individual hard drives or on the drive magazines.
Drive Chassis Placement and Numbering
HP 3PAR T-Class Storage Systems support DC4 drive chassis. Depending on the specific
configuration, the system may support up to 32 drive chassis. The DC4 drive chassis is a 40 hard
drive, 4Gb/s drive chassis.
Drive chassis are always placed above the system backplane enclosure and numbered according
to their position in relation to the backplane, as shown in Figure 46 (page 57).
Figure 46 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 47 (page 58) and Figure 48 (page 58) illustrates individual drive chassis components and
numbering pattern.
Handling the Drive Magazines 57