I have a basic question. This was asked to me on an interview for which i was not able to answer.
Q: WWN is a 64 bit unique identifier and is given for each port and node and also for switches.Why do we need an seperate FCID in fibre channel when we have a unquie WWN. Why cannot we use the WWN for sending frames.
Free Guide: Managing storage for virtual environments
Complete a brief survey to get a complimentary 70-page whitepaper featuring the best methods and solutions for your virtual environment, as well as hypervisor-specific management advice from TechTarget experts. Don’t miss out on this exclusive content!