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could use more detail about NVMe overprovisioning #370

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shribe opened this issue Dec 19, 2022 · 1 comment
Open

could use more detail about NVMe overprovisioning #370

shribe opened this issue Dec 19, 2022 · 1 comment
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documentation Improvements or additions to documentation good first issue Good for newcomers

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@shribe
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shribe commented Dec 19, 2022

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.
@gmelikov
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I agree, we can add some info about SSD FTL layer, NAND erase block sizes and reason why somebody wants to have free space on disk.

@gmelikov gmelikov added documentation Improvements or additions to documentation good first issue Good for newcomers labels Dec 19, 2022
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