Compaq StorageWorks TM RAID Array 3000 Pedestal Storage Subsystem Servisní příručka Strana 156

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Figure 6–5 shows a two-node Fibre Channel cluster with a single RA8000
or ESA12000 storage array with dual-redundant HSG80 controllers and an
DS-SWXHB-07 Fibre Channel hub.
Figure 6–5: Arbitrated Loop Configuration with One Storage Array
ZK-1697U-AI
SWXHB-07
HSG 80
Controller A
HSG 80
Controller B
RA8000/ESA12000
Port 1
Port 2
Port
1
Port 2
KGPSA
Member
System
1
Memory
Channel
KGPSA
Memory
Channel
Memory
Channel
Interface
Member
System
2
6.3.2 Fibre Channel Cluster Configurations for Multiple-Bus Failover
Mode
With multiple-bus failover:
The host controls the failover by accessing units over a different path or
causing the access to the unit to be through the other HSG80 controller.
An active controller causes a failover to the other controller if the
controller recognizes the loss of the switch, hub, or cable to a controller
port.
Each cluster member system has two or more (fabric only) KGPSA host
bus adapters (multiple paths to the storage units).
6–10 Using Fibre Channel Storage
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