What is a NAS head and how does it work in a broadcast environment?
A NAS head is also called a NAS Gateway which is the control function of NAS without the storage device. The storage is connected (typically using Fibre Channel) to a SAN where the resources may be shared by other servers and are managed centrally. The usage is still that of a remote file system where the requesting host redirects file I/O over Ethernet using a protocol such as NFS or CIFS.
Read Marc Farley's answer to this question.
Dig Deeper on NAS devices
Related Q&A from Randy Kerns
Compare SAN and NAS and find out what to consider when using each storage system format. Object storage and the cloud are also affecting the storage ... Continue Reading
Logical unit numbers are a logical abstraction between a physical disk device and applications. Learn more about LUN use cases and LUN security ... Continue Reading
What is the one hidden gotcha that you'd advise users about if they were shopping for an all-flash storage array? Continue Reading