Sun Microsystems Sun StorEdge T3 - Manual (Page 46)

34 Sun StorEdge T3 and T3+ Array Configuration Guide • August 2001
Hub Host Connection
The following sample configurations are included in this section:
■ “Single Host With Two Hubs and Four Controller Units Configured as Two
Partner Groups” on page 34
■ “Single Host With Two Hubs and Eight Controller Units Configured as Four
Partner Groups” on page 36
■ “Dual Hosts With Two Hubs and Four Controller Units” on page 38
■ “Dual Hosts With Two Hubs and Eight Controller Units” on page 40
■ “Dual Hosts With Two Hubs and Four Controller Units Configured as Two
Partner Groups” on page 42
■ “Dual Hosts With Two Hubs and Eight Controller Units Configured as Four
Partner Groups” on page 44
Single Host With Two Hubs and Four Controller
Units Configured as Two Partner Groups
FIGURE 4-6 shows one application host connected through FC-AL cables to two hubs
and two array partner groups. The Ethernet connection on the master controller unit
is on a public or separate network and requires an IP address for the partner group.
In the event of a failover, the alternate master controller unit will use the master
controller unit’s IP address and MAC address.
Note – This configuration is a recommended enterprise configuration for RAS
functionality because the controller is not a single point of failure.
Note – There are no hub port position dependencies when connecting arrays to a
hub. Arrays can be connected to any available port on the hub.
Each array needs to be assigned a unique target address using the port set
command. These target addresses can be any number between 1 and 125. At the
factory, the array target addresses are set starting with target address 1 for the
bottom array and continuing to the top array. Use the port list command to
verify that all arrays have a unique target address. Refer to Appendix A of the Sun
StorEdge T3 and T3+ Array Administrator’s Guide for further details.