Compaq ProLiant 6400R Compaq Parallel Database Cluster Model PDC/O2000 for Ora - Page 76
The odd-numbered Storage Hub or FC-AL Switch Storage Hub/FC-AL
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2-52 Compaq Parallel Database Cluster Model PDC/O2000 for Oracle8i and Windows 2000 Administrator Guide I In each RA4000/RA4100 Array, the bottom (rack model) or left rear (tower model) array controller is always the standby controller. I The odd-numbered Storage Hub or FC-AL Switch (Storage Hub/FC-AL Switch #1) is connected to the active array controller in each RA4000/RA4100 Array. I The even-numbered Storage Hub or FC-AL Switch (Storage Hub/FC-AL Switch #2) is connected to the standby array controller in each RA4000/RA4100 Array. NOTE: The following active/standby configurations are examples only. You are not required to follow these configurations. For more information about installing active/standby configurations, refer to the following sections in Chapter 5, "Installation and Configuration": I "Cabling the Fibre Host Adapters to the Storage Hubs or Switches" I "Cabling the Storage Hubs or Switches to the RA4000 Array Controllers" In Figures 2-20 through 2-24, active I/O path components have been shaded to distinguish them from standby (inactive) components. Black Fibre Channel cables identify connections between active components; gray cables identify connections between standby components.