This section explores the address space manipulation techniques used in SAN virtualization and volume management. Among the topics covered are
The storage flat address space
Private data areas and metadata
Storage (block) address spaces are referred to as “flat.” This means they have a simple one-dimensional structure with a beginning address, an ending address, and all other addresses in between, in order. There are no rows or columns or tuple address locations to figure out. Figure 12-8 represents a very simple 20-block storage address space.