Technical data

3.3 Unsupported and Illegal Cluster Configurations
Figure 3-5 shows a TruCluster Server configuration that is not supported.
The MSA1000 controllers operate in active/passive mode; one controller is
active while the other controller is passive. In the configuration shown in
Figure 3-5, both cluster member systems try to make their controller active,
creating a ping-pong effect. Both systems would receive many errors, and no
useful I/O would be accomplished.
Figure 3-5: A TruCluster Server Configuration that is not Supported
MSA1000
ZK-2019U-AI
Cluster
Interconnect
Member
System
2
Member
System
1
Network
Fibre Channel Host
Bus Adapter
Fibre Channel Host
Bus Adapter
FC I/O ModuleFC I/O Module
SCSI I/O
Module
Model 4354R Disk Enclosure
Fibre Channel
Switch
Fibre Channel
Switch
TruCluster Server Configurations Using an MSA1000 for Storage 3-7