Product manual

Managing Critical Data
77 A1 69UP Rev00 5-7
DISK DIRECTOR 2
PROCESSOR
A
PROCESSOR
B
PC PD SC SD
PC PD SC SD
TO/FROM
MEMORY
DISKS
DISK DIRECTOR 1
PROCESSOR
A
PROCESSOR
B
PC PD SC SD
PC PD SC SD
DISKS
DISKS
DISKS
DISKS
DISKS
DISKS
DISKS
PC = PRIMARY C BUS
PD = PRIMARY D BUS
SC = SECONDARY C BUS
SD = SECONDARY D BUS
= PRIMARY SCSI PATHS TO DISKS
= SECONDARY SCSI PATHS TO DISKS
Figure 5-1. CDA 7 Dual-Initiator