HP Surestore Disk Array FC60 HP SureStore E Disk Array FC60 - (English) Advanc - Page 120
High Availability, Distance, and Capacity Topology
View all HP Surestore Disk Array FC60 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 120 highlights
High Availability, Distance, and Capacity Topology The high availability, distance, and capacity topology expands on the high availability topology by using cascaded HP Fibre Channel-AL Hubs to increase the distance of each Fibre Channel-AL and the number of devices that can be interconnected on the Fibre Channel-AL. Cascaded HP Fibre Channel-AL Hubs are two HP Fibre Channel-AL Hubs connected together. Each instance of this topology uses the following hardware components: • Up to four host systems or servers • Two Fibre Channel I/O adapters per host • Two pairs of cascaded 10-port HP Fibre Channel-AL Hubs • Two controller modules per disk array • Maximum of nine dual-controller module disk arrays • Maximum 500 m fibre optic cable distance on each connection between each host and HP Fibre Channel-AL Hub and between each HP Fibre Channel-AL Hub and disk array, for a total Fibre Channel-AL cable length not to exceed 5000 m Like the high availability topology, this topology supports high availability by using redundant Fibre Channel-ALs. If a hardware component (Fibre Channel adapter, HP Fibre Channel-AL Hub, controller module or cables) in one Fibre Channel-AL fails, I/O communication between hosts and disk arrays can continue through the other Fibre Channel-AL. The increased distance is supported by using 500 m fibre optic cable to connect each pair of cascaded HP Fibre Channel-AL Hubs. If distance is a requirement, it is managed between the two HP Fibre Channel-AL Hubs. The distance from hosts to HP Fibre Channel-AL Hubs and from disk arrays to HP Fibre Channel-AL Hubs should be minimized. 120 Topologies for HP-UX