Using FileSnaps to create point-in-time copies of files

The key to obtaining maximum performance with FileSnaps is to minimize the copy-on-write overhead. You can achieved this by enabling lazy copy-on-write. Lazy copy-on-write is easy to enable and usually results in significantly better performance. If lazy copy-on-write is not a viable option for the use case under consideration, an efficient allocation of the source file can reduce the need of copy-on-write.