Current functionality of iSCSI is limited in scope. That said, iSCSI is block I/O based and can be much easier to implement than a SAN. If a company does not have any SAN expertise, then building an iSCSI network would be simple using current knowledge in IP based networks. Current topology should be limited to a LAN or private WAN, although it is block based, it suffers from the same latency issues as any IP network. Fibre SAN infrastructure is much more efficient for transferring large amounts of Data and should be used when performance is paramount. As IP network bandwidth increases and the iSCSI standard matures, it may give Fibre SANs competition. For now though, NAS and SAN is the way most customers are going.
Related Q&A from Christopher Poelker
SAN expert Chris Poelker compares connecting a SAN with wavelength cabling and dark fiber and discusses the pros and cons of each.continue reading
SAN expert Chris Poelker discusses how to change the size of a LUN in a Microsoft cluster server environment.continue reading
Storage expert Chris Poelker discusses SATA/SCSI compatibility issues in this expert advice article.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.