SG0-001 · Question #141
Which of the following deduplication methods will minimize host CPU utilization? (Select TWO)
The correct answer is A. Appliance C. Inline. Appliance-based and inline deduplication methods minimize host CPU utilization by offloading the deduplication process to dedicated hardware or the storage system itself.
Question
Which of the following deduplication methods will minimize host CPU utilization? (Select TWO)
Options
- AAppliance
- BVirtual
- CInline
- DSoftware
- EAgent
How the community answered
(53 responses)- A77% (41)
- B6% (3)
- D13% (7)
- E4% (2)
Why each option
Appliance-based and inline deduplication methods minimize host CPU utilization by offloading the deduplication process to dedicated hardware or the storage system itself.
Appliance-based deduplication uses a dedicated hardware device, separate from the host server, to perform the CPU-intensive deduplication process, thereby offloading the host's resources.
"Virtual" is not a specific deduplication method but rather a characteristic of how resources are presented; it does not inherently define where deduplication processing occurs or minimize host CPU.
Inline deduplication processes data as it is being written to the storage system, often leveraging specialized hardware or optimized software within the storage array to perform the reduction without consuming host CPU cycles.
Software deduplication typically runs on the host server's CPU or general-purpose server CPUs, consuming host resources for the deduplication process.
Agent-based deduplication implies software running on the host server, which would utilize the host's CPU to perform deduplication tasks.
Concept tested: Deduplication methods and host resource impact
Source: https://docs.netapp.com/us-en/ontap-9/concept_how_data_reduction_works.html
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