Since FC is a topology that supports SCSI protocol, in what way is it more significant than SCSI topology? Could you provide me with the answer as well as give me information about where I could find more details regarding the same?
Although Fibre Channel utilizes the SCSI protocol for block based disk I/O, Fibre also has the capability to run multiple protocols at the same time. The Fibre spec is very open, and the Fibre cables themselves are just the underlying transport that enable great distances between servers and storage,(up to 100km) and also enables storage consolidation for access by many nodes.
SCSI on the other hand only supports a max of 15 nodes per bus, is limited to 25 meters for differential SCSI and requires proper termination to prevent signal reflection. Fibre in a fabric topology can scale to thousands of nodes, is unlimited in the amount of storage being accessed, is tamper proof because it's optical, and enables things like LAN free backup, remote replication, wide area clustering, dual pathing, dual ported access, hardware based volume shadowing, etc.
Dig deeper on Fibre Channel (FC) SAN
Related Q&A from Christopher Poelker
RAID can allow for better storage performance and higher availability, and there are many different RAID types. Read a comparison of RAID levels, as ...continue reading
SAN expert Chris Poelker discusses how to change the size of a LUN in a Microsoft cluster server environment.continue reading
SAN expert Chris Poelker compares connecting a SAN with wavelength cabling and dark fiber and discusses the pros and cons of each.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.