HP StorageWorks 4000 Understanding Compaq StorageWorks RAID Array 4000 and Inf - Page 8

Understanding Compaq StorageWorks RAID Array 4000 and Infrastructure Cabling 8 Fibre channel cable types are labeled at one-meter intervals on the cable. A fibre channel cable labeled "50/125" indicates a 50 micron inner core with 125 micron outer cladding. Table 3 identifies the color coding for fibre channel cables. Table 3. Standard fibre channel cable color codes Size 62.5 micron 50 micron 9 micron Color Slate gray or orange Orange Yellow Compaq RA4000 system components interconnect using 50-micron and 62.5-micron multi-mode cables and 9-micron single-mode cables. However, Compaq only provides 50-micron multi-mode cables with the product. Customers can acquire the other cable types from Compaq and other sources. Refer to Acknowledgements and References later in this document. Interconnecting System Components This section discusses interconnecting primary storage system components using the RA4000. Overview of System Components The RA4000 uses the components described in Table 4. Table 4. Compaq StorageWorks RAID Array 4000 components Component RA4000 RA4000 Controller Optional RA4000 Redundant Controller Compaq StorageWorks Fibre Channel Storage Hub 7 Compaq StorageWorks Fibre Channel Storage Hub 12 Compaq StorageWorks Fibre Channel Host Adapter/E Compaq StorageWorks Fibre Channel Host Adapter/P GBIC-SW GBIC-LW Multi-mode Cable Single-mode Cable Description An external storage cabinet that houses the RA4000 Controller and up to twelve 1-inch or eight 1.6-inch SCSI disk drives (Wide-Ultra SCSI-3, Fast-Wide SCSI-2, or Fast SCSI-2). An intelligent fibre channel-to-SCSI array controller with 64 MB cache. A standby controller that takes over in the event a component or connection fails in a redundant configuration that provides no single point of failure. The redundant controller is an RA4000 Controller with redundancy support firmware. Supports up to 7 devices on a fibre channel arbitrated loop. Supports up to 12 devices on a fibre channel arbitrated loop. An EISA-to-Fibre Channel Host Adapter. A PCI-to-Fibre Channel Host Adapter. Converts optical signals (770 to 860 nanometers) into electrical signals and electrical signals into optical signals. Allows point-to point connections for distances up to 500 m. Converts optical signals (1,270 to 1,355 nanometers) into electrical signals and electrical signals into optical signals. Allows point-to-point connections for distances up to 10 km. 2-m, 5-m, 15-m, 30-m, or 50-m 50-micron fiber optic cable. All cables are available as separate options. For 62.5-micron fiber optic cable, refer to Acknowledgements and References later in this document. Refer to Acknowledgements and References later in this document. ECG02030699A