What is the difference between NAS and SAN?
The fundamental difference is NAS does file I/O by remote file serving, while SAN is for block I/O where storage is connected via a network (usually fibre channel, but with recent deployments of iSCSI, over IP on Ethernet) just like the storage that was directly connected. Both are very applicable in consolidation solutions where storage is being consolidated for use by multiple servers and applications. So, remember, file I/O versus block I/O.
Related Q&A from Randy Kerns
What is the one hidden gotcha that you'd advise users about if they were shopping for an all-flash storage array?continue reading
How much control do you have with all-flash storage arrays? How much control do you have over how arrays handle your data? Do you control the caching?continue reading
Vendors often publish numbers for 'usable' capacity versus 'effective' capacity. Can you explain this and how can you plan flash capacity needs with ...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.