Virtualize network storage, how is it virtualized?

Virtualized storage can be understood as virtualization of computing resources. Traditional server computing resources are directly connected locally. For example, physical machines, such as CPU, memory, hard disk and network card, are directly plugged into the motherboard. IT administrators can remotely manage through the network through telnet and SSH, or come to the computer room to manage the physical machine through the directly connected keyboard and monitor. With the further development of virtualization, the virtualization of computing resources is mainly manifested as "resource pooling". Several or hundreds of physical machine resources are integrated together, just like a swimming pool. Hundreds of CPU, memory, hard disk storage space and network interfaces serve the upper virtual machine by virtualizing the lower architecture. The upper virtual machine calls part of CPU, memory and hard disk storage according to the scheduling instruction of the administrator.

Storage virtualization can also be understood in this way. NETGEAR ReadyDATA5200, or the same type of unified storage device, is used to provide storage space above TB and PB, not for a physical machine, but to "pool" these storage spaces for the upper virtual machines, and allocate different storage spaces for virtual machines providing different business services through the scheduling and allocation of administrators. Matching the development of business, dynamically adjusting the storage space required by virtual machines has unprecedented flexibility, which is unmatched by non-virtualized architecture, just like the lack of storage space in servers and the need to buy hard disks. How much should I buy? Is the motherboard interface sufficient? How to do RAID with multiple disks? I believe that both managers and engineers will find it very troublesome, and through the virtualization architecture, the same thing can be completed with a click of a mouse or a few commands, which is the convenience brought by resource virtualization in the virtualization architecture.