External tape, DVD-RAM, optical, disk storage, and SAN components 431Draft Document for Review October 18, 2004 5486ExtStor.fm 62.5 micron fiber - A multimode fiber and can go the least distance (1Gb175m, 2Gb 90m) 9 micron fiber - A singlemode fiber that can go much longer distances (1Gband 10KM)Two types of connectors are common with fibre channel devices and controllers: LC (Lucent Connector) - This connector type is the most prevalent today. It ismuch smaller allowing higher port densities - and is found almost everywhere2Gb speeds are supported. SC (Subscriber Connector) - This is an older connector type found with themajority of devices supporting 1Gb Fibre ChannelThe components that are supported by the #2765 and #5704 Fibre Channel TapeControllers, and the #2766 and #2787 PCI-X Fibre Channel Disk Controller FibreChannel Disk Controllers, include: IBM TotalStorage DS6000 and DS8000 Family IBM TotalStorage Enterprise Storage Server IBM TotalStorage 3592 Tape Drive Model J1A IBM TotalStorage Enterprise Tape Drive 3590 IBM LTO Ultrium 3581 2U IBM Ultrium Tape Library 3582 IBM Ultrium Scalable Tape Library 3583 IBM UltraScalable Tape Library 3584Fibre attachment is either directly from the IBM Eserver i5 or iSeries adapter toan storage server or tape drive, or via a Fibre Channel switch or fabric. Foradditional information on IBM Eserver i5 and iSeries with SAN please referenceIBM iSeries in Storage Area Networks, SG24-6220.IBM SAN switches and directors for IBM Eserver i5 and iSeriesSAN switches are supported on IBM Eserver i5 and iSeries servers forconnecting multiple host servers with storage servers and devices, creating aSAN. There are a variety of SAN switches supported by the IBM Eserver i5 andiSeries servers. For more information, see the following Web site:http://www-1.ibm.com/servers/storage/san/SAN components can be categorized into Entry-Midrange fibre channel switchesand Enterprise fibre channel switches and directors. These switches anddirectors are summarized below.