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Fibre Channels - What are fibre channel SANs?Sponsored Links
What are Fibre Channel SANs?
Why are Fibre Channel SANs ( storage area networks ) so popular over SCSI SANs?
- Fibre Channel SANs is a great technology that offers backward compatibility in the storage networking space by offering support for copper cables and fiber optics
- Fibre Channel SANs have one other key advantage over SCSI SANs - Fibre Channel SAN based technologies support cables until 12000 meters in length compared to just about 25 meters in SCSI SANs.
Types of Fibre Channel SANs
- Fabric topology based Fibre Channel SANs : Fabric Channel SANs use a fibre channel that simulate a LAN switch so that multiple servers access a pool of storage devices
- Loop token ring based Fibre Channel SANs : Loop based Fibre Channel SANs are based on token Ring topology framework technologies so that servers can use the fibre channel hub to access multiple storage devices.
- Direct one on one (point to point) Fibre Channel SANs : Direct Fibre Channel SANs connect servers directly to a storage device. This storage networking approach is generally not used anymore unless there is a specific need identifed.
The Fibre Channel SAN protocol
- Fibre Channels work on a single popular storage networking protocol that offer compatibility to all common storage and database servers.
- Fibre Channels use the FCP protocol ( Fibre Channel Protocol) which is simply a serial bus SCSI protocol.
- This FCP (Fiber Channel protocol) works really well in networks with a high bandwidth requirement.