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Dell EMC D-PWF-OE-00 Exam - Topic 4 Question 4 Discussion
Topic #: 4
What is the benefit of enabling deduplication in PowerFlex storage?
Deduplication (often paired with compression) is an efficiency feature available in PowerFlex Fine Granularity (FG) storage pools.
Reduces data redundancy (Option A): The primary purpose of inline deduplication is to identify repeated data patterns (blocks) as they are written to the system. Instead of writing the same 4KB block of zeroes or identical OS files multiple times, PowerFlex writes it once and creates pointers for subsequent writes. This significantly reduces the physical storage capacity required to store data, particularly in VDI (Virtual Desktop Infrastructure) or virtualized server environments where many VMs share similar OS files.
Note: Deduplication is a trade-off; it saves space but requires more CPU/RAM overhead on the Storage Data Servers (SDS).
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