HP 3PAR StoreServ Storage Concepts Guide (OS 3.1.2 MU2) (QR482-96384, June 2013)

Physical Disks
A physical disk is a hard drive mounted on a drive magazine or module located in drive cages in
HP 3PAR storage systems. There are three types of physical disks: Fibre Channel (FC), Near Line
(NL) and Solid State Drives (SSD).
In DC4 drive cages, each drive magazine holds four disks numbered 0 through 3 from the rear
to the front of the magazine. The DC4 drive cages contain a maximum of ten drive magazines for
a maximum of 40 physical disks in each drive cage. See Figure 13 (page 63).
Figure 13 DC4 Drive Magazine with Physical Disks
1. Front of drive magazine
2. Rear of drive magazine
In a DC3 drive cage, each plug-in drive module holds a single disk numbered 0 through 15. The
DC3 drive cage contains 16 drive bays and holds up to 16 drive magazine modules for a maximum
of 16 physical disks in each drive cage. See Figure 14 (page 63).
Figure 14 DC3 Drive Magazine Module with One Physical Disk
Physical Disks 63