openzfs/openzfs-docs

could use more detail about NVMe overprovisioning

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#370 opened on Dec 19, 2022

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Description

The sections Overprovisioning by secure erase and partition table trick](https://openzfs.github.io/openzfs-docs/Performance%20and%20Tuning/Workload%20Tuning.html#id61) & NVMe overprovisioning could use a bit more explanation, or a link to external information.

I am unclear as to why installing an NVMe, creating partitions for SLOG and/or L2ARC which sum to significantly less than the NVMe size would not be sufficient.

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Research direction
Explain the concept of NVMe overprovisioning and why simply creating partitions for SLOG/L2ARC is not sufficient; add links to external resources for more detail.
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None
Domain
documentation
Issue type
Documentation
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
1
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Under 1 hour
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Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
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None
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
80