Compaq ProLiant 6500 Compaq Parallel Database Cluster Model PDC/O2000 for Orac - Page 32
Fibre Host Adapters, Gigabit Interface Converter-Shortwave Modules
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2-8 Compaq Parallel Database Cluster Model PDC/O2000 for Oracle8i and Windows 2000 Administrator Guide The PDC/O2000 allows the use of either the Storage Hub 7 (with 7 ports) or the Storage Hub 12 (with 12 ports). Using the Storage Hub 7 limits the size of the PDC/O2000 cluster. For example, a cluster with four cluster nodes and four RA4000/RA4100 Arrays requires Storage Hubs with at least 8 ports (Storage Hub 12s). In your selection of Storage Hubs, you should also consider the likelihood of cluster growth. Refer to the Compaq StorageWorks Fibre Channel Storage Hub 7 Installation Guide and the Compaq StorageWorks Fibre Channel Storage Hub 12 Installation Guide for further information about the Storage Hubs. Fibre Host Adapters Each redundant Fibre Channel Fabric or redundant FC-AL in a PDC/O2000 contains a dedicated set of Fibre Host Adapters in every cluster node. Across servers, Fibre Host Adapters in the same slot are connected to the same Storage Hub, FC-AL Switch, or Fibre Channel Fabric SAN. If the PDC/O2000 cluster contains multiple redundant Fibre Channel Fabrics or redundant FC-ALs, each redundant Fibre Channel Fabric or redundant FC-AL must have its own dedicated set of Fibre Host Adapters in each cluster node. Compaq Secure Path software is installed on each cluster node to ensure the proper detection of failures on an active I/O path and successful failover to the standby I/O path. For information about installing Secure Path, see "Installing Secure Path Software for Windows 2000" in Chapter 5, "Installation and Configuration." For more information about the Fibre Channel Host Adapter, refer to the Compaq StorageWorks Fibre Channel Host Bus Adapter Installation Guide or the Compaq StorageWorks 64-Bit/66-MHz Fibre Channel Host Adapter Installation Guide. Gigabit Interface Converter-Shortwave Modules A Gigabit Interface Converter-Shortwave (GBIC-SW) module must be installed at both ends of a Fibre Channel cable. A GBIC-SW module is inserted in each Fibre Host Adapter, each active port on a Storage Hub, FC-AL Switch, or Fibre Channel SAN Switch, and each RA4000 Array Controller. GBIC-SW modules provide 100 MB/second performance. Fibre Channel cables connected to these modules can be up to 500 meters in length.