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2a PCI Multiport Async Card is required in an S7X model, no native ports
3only one serial port available for customer use, i.e. HACMP
In case the number of native serial ports doesn’t match your HACMP cluster configuration needs, you can extend it by adding an
Target-mode SCSI
Another possibility for a
Target Mode SCSI is only supported with
The recommendation is to not use more than 4 target mode SCSI networks in a cluster.
Target-mode SSA
If you are using shared SSA devices, target mode SSA is the third possibility for a serial network within HACMP. In order to use
2.3 Cluster Disks
This section describes the various choices you have in selecting the type of shared disks to use in your cluster.
2.3.1 SSA Disks
The following is a brief description of SSA and the basic rules to follow when designing SSA networks. For a full description of SSA and its functionality, please read Monitoring and Managing IBM SSA Disk Subsystems,
SSA is a