Compaq ProLiant 8500 Compaq Parallel Database Cluster Model PDC/O1000 for Orac - Page 41
Using Multiple Non-Redundant Fibre Channel Arbitrated Loops
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2-18 Compaq Parallel Database Cluster Model PDC/O1000 for Oracle8i and Windows 2000 Administrator Guide Using Multiple Non-Redundant Fibre Channel Arbitrated Loops The PDC/O1000 supports the use of multiple non-redundant FC-ALs within the same cluster. Physically, this means that within each cluster node, multiple Fibre Host Adapters are used to connect the nodes to different sets of RA4000/RA4100 Arrays. NOTE: The PDC/O1000 supports the mixing of non-redundant FC-ALs and non-redundant Fibre Channel Fabrics in the same cluster. You would install additional non-redundant FC-ALs in a PDC/O1000 cluster to: I Increase the amount of shared storage available to the cluster's servers when the Storage Hub or FC-AL Switch in your first FC-AL is filled to capacity. With just one FC-AL present, your shared storage resources are restricted by the number of ports available on its Storage Hub or FC-AL Switch. I Increase the PDC/O1000 cluster's I/O performance. Adding a second non-redundant FC-AL to the PDC/O1000 involves duplicating the hardware components used in the first FC-AL. The maximum number of non-redundant FC-ALs you can install in a PDC/O1000 is restricted by the number of Fibre Host Adapters your Compaq ProLiant servers support. Refer to the Compaq ProLiant server documentation for this information.