Compaq AA-RHGWC-TE - Manual (Page 136)

6.3.1 Fibre Channel Cluster Configurations for Transparent Failover
Mode
With transparent failover mode:
• The hosts do not know a failover has taken place (failover is transparent
to the hosts).
• The units are divided between an HSG80 port 1 and port 2.
• If there are dual-redundant HSG80 controllers, controller A port 1 and
controller B port 2 are normally active; controller A port 1 and controller
B port 1 are normally passive.
• If one controller fails, the other controller takes control and both its
ports are active.
Figure 6–4 shows a typical Fibre Channel cluster configuration using
transparent failover mode.
Figure 6–4: Fibre Channel Single Switch Transparent Failover
Configuration
ZK-1531U-AI
KGPSA
Member
System
1
Memory
Channel
KGPSA
Memory
Channel
Memory
Channel
Interface
Member
System
2
Fibre Channel Switch
HSG 80
Controller A
HSG 80
Controller B
RA8000/ESA12000
Port 1 Port 2
Port 1 Port 2
6–10 Using Fibre Channel Storage