These topics include reference information for Copy Services.
Space-efficient FlashCopy
You can have a mix of space-efficient and fully allocated
VDisks in FlashCopy® mappings.
One common combination is a fully allocated source with a space-efficient
target, which allows the target to consume a smaller amount of real
storage than the source.
FlashCopy indirection layer
The FlashCopy feature
provides the semantics of a point-in-time copy by using an indirection
layer which intercepts I/Os that are targeted at both the source and
target virtual disks (VDisks).
FlashCopy mapping events
FlashCopy mapping
events detail the events that modify the state of a FlashCopy mapping.