3.7.1Configuring Radially Connected TruCluster Server Clusters with UltraSCSI Hardware
Radial configurations with RAID array controllers allow you to take advantage of the benefits of hardware mirroring, and to achieve a
•RA7000 or ESA10000 with HSZ70 controller
•RA7000 or ESA10000 with HSZ80 controller
•RA8000 or ESA12000 with HSZ80 controller
When used with TruCluster Server, one advantage of using a RAID array controller is the ability to hardware mirror the clusterwide root (/) file system, member system boot disks, swap disk, and quorum disk. When used in a
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Enable mirrored cache for
Use transparent failover if you only have one shared SCSI bus. Both controllers are connected to the same host and device buses, and either controller can service all of the units if the other controller fails.
Transparent failover compensates only for a controller failure, and not for failures of either the SCSI bus or host adapters and is therefore not a NSPOF configuration.
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Set each controller to transparent failover mode before configuring devices (SET FAILOVER COPY = THIS_CONTROLLER).
To achieve a NSPOF configuration, you need
You may use
Shared SCSI Bus Requirements and Configurations Using UltraSCSI Hardware
