What is the effect of enabling deduplication and compression on a volume?

• A. Deduplication and compression can reclaim storage capacity by removing duplicates and compressing data.
• B. They increase the total stored data footprint.
• C. They disable replication features.
• D. They guarantee 100% compression for all data.

Answer: (A)

Deduplication and compression are storage efficiency techniques. On a volume, enabling them reclaims storage capacity by removing duplicate data blocks and by storing data in a more compact form. The actual space savings depend on how many duplicates exist and how well the data compresses, so you won’t always get the same ratio. They do not increase the storage footprint, and they do not disable replication features. They also don’t guarantee 100% compression for all data; some data may not compress much or at all. So the primary effect is reclaiming capacity by eliminating duplicates and compressing data.