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
Changing the algorithm immediately affects any new data written
to the system. Any data already stored on the system will be
recompressed during the next cleaning run, which may take much
longer to run than usual.
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Correct is C.
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