Sun-microsystems Sun StorEdge T3 Manual de usuario descargar pdf (Pagina 43)

Chapter 4 Configuration Examples 31

Single Host With Four Controller Units

Configured as Two Partner Groups

FIGURE 4-4 shows one application host connected through FC-AL cables to four

arrays configured as two separate partner groups. This configuration can be used for

capacity and I/O throughput requirements. Host-based Alternate Pathing software

is required for this configuration.

Note – This configuration is a recommended enterprise configuration for RAS

functionality because the controller is not a single point of failure.

The following three parameters must be set on the master controller unit, as follows:

■ mp_support = rw or mpxio

■ cache mode = auto

■ cache mirroring = auto

For information on setting these parameters, refer to the Sun StorEdge T3 and T3+

Array Administrator’s Guide.

FIGURE 4-4 Single Host With Four Controller Units Configured as Two Partner Groups

Application host

Management host

Ethernet

port

Interconnect

cables

HBA

LAN

FC-AL

HBA

Master

Alternate

master

controller

unit

controller

unit

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Sun-microsystems Sun StorEdge T3 Manual de usuario Pagina 43