HP Surestore Disk Array FC60 HP SureStore E Disk Array FC60 - (English) Advanc - Page 131

Topology and Array Planning Topologies for Windows NT and Windows 2000 The topology of a network or a Fibre Channel Arbitrated Loop (Fibre Channel-AL) is the physical layout of the interconnected devices; that is, a map of the connections between the physical devices. The topology of a Fibre Channel-AL is extremely flexible because of the variety and number of devices, or nodes, that can be connected to the Fibre ChannelAL. A node can be a host system or server, a Fibre Channel hub or switch, or the controller modules in a disk array. The tested topologies supported on Windows NT and Windows 2000 are illustrated in this section. Included are the error handling capabilities of the topologies. Note Unsupported Single Hub Topologies on Windows. Due to limitations in the RDAC driver included with the HP Storage Manager 60 (SM60) software, some topologies that use a single hub are not supported. The RDAC driver supports only two data paths to the FC60 Disk Array, so any topology that provides more than two paths will not work. This is most common is topologies using a single hub. Topologies using a Fibre Channel switch are supported. Any topology that is configured in the following manner is not supported with the SM60 software: A host with dual Fibre Channel adapters both connected to a single hub, with the hub then connected to both controllers on the disk array. Figure 44 shows a sample of an unsupported Windows topology. Topologies for Windows NT and Windows 2000 131