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

3.15
Understanding Component Numbering
InForm OS Version 2.3.1 Messages and Operator’s Guide
3.3.5 Drive Chassis Numbering
Depending on the specific configuration, a storage server can include up to 64 drive chassis. A
drive chassis houses two drive cages where each contains five drive bays. Each drive bay can
accommodate a single drive magazine holding four disks for a total of 20 disks per drive cage
and 40 disks per drive chassis.
Numbers for drive chassis are assigned:
■ beginning with 0.
■ from bottom to top, beginning with the drive chassis directly above the storage server
backplane.
PCI ports
dual-port adapters
quad-port adapters
1,2
1,2,3,4
top to bottom
top to bottom
Control Cache DIMMs
control cache
data cache
0,1
0,1,2,3,4,5,6,7
left to right*
Data Cache DIMMs
Bank 0
Bank 1
Bank 2
0,1
0,1
0,1
top to bottom
* When facing the storage server.
Table 3-3. Numbering System for Controller Nodes and their Components (continued)
The Following Components... Are Numbered... Running from...