3PAR InForm® OS 2.2.4 Concepts Guide (320-200085 Rev B, March 2009)

12.5
Drive Cage Models
InForm OS Version 2.2.4 3PAR InForm OS Concepts Guide
12.1.3 DC3 Drive Cage
The DC3 drive cage contains 16 drive bays at the front, each accommodating the appropriate
plug-in drive carrier module. The 16 drive bays are arranged in four rows of four drives.
Figure 12-4 shows a DC3 drive cage.
Figure 12-4. DC3 Drive Cage
12.1.4 DC3 Ports and Cabling
In the DC3 drive cage, two Switched Bunch of Disks (SBD) Modules, each providing four small
form-factor pluggable (SFP) modules to service the drive cage. The left-hand SBD has four
ports, labeled Port 0 through Port 3, from bottom to top. The right-hand SBD has four ports,
labeled Port 0 through Port 3, from top to bottom.
Figure 12-5. DC3 Drive Cage (Rear View)
0148_L_R2
0401_L_R1
FCAL-B FCAL-A
B3
B2
B1
B0
A0
A1
A2
A3
Drive Chassis
Power Supply 0
Drive Chassis
Power Supply 1