A customer has been using lz Local Compression when backing up their data to an EMC Data
Domain system.
An audit of their storage content shows that they can effectively use gz compression for their data.
What should be considered before changing the Local Compression type?

A.
Overall system performance will improve with the new compression

B.
Existing data will not be recompressed; only new data will be gz compressed

C.
New compression on the old data will not take effect until the next system cleaning

D.
Changes must be made at the beginning of a 20-hour backup window

Explanation: