FlashCopy creates a copy of a volume at a specific point-in-time, which is also known as a Point-in-Time copy, instantaneous copy, or time-zero copy (t0 copy).
This chapter explains the basic characteristics of FlashCopy when used in an Open Systems environment with the DS8000. This chapter describes the following topics:
•FlashCopy operational areas
•FlashCopy basic concepts
•FlashCopy in combination with other Copy Services
•IBM FlashCopy SE (Space-Efficient)
•IBM FlashCopy with thin provisioned Extent-Space-Efficient (ESE) ...