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raidz expansion PRE-ALPHA CODE
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Authored by mahrens on Apr 18 2018, 12:07 AM.
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F132197858: D15124.id41604.diff
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F132128261: D15124.diff
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Details

Summary

Everything happens in one txg

On disk format will change, you will have to destroy your pools.

Design details:
http://www.open-zfs.org/w/images/6/68/RAIDZ_Expansion_v2.pdf
https://www.youtube.com/watch?v=ZF8V7Tc9G28

Diff Detail

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Unit
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Build Status
Buildable 16205
Build 16156: arc lint + arc unit

Event Timeline

From RAID-Z Expansion Feature for ZFS Goes Live | FreeBSD Foundation:

… the biggest need for additional help is in testing the feature further and in doing a code review before this feature can be integrated.

I assume that this relatively old D15124 is superseded (no longer needs review), true?

RAIDZ Expansion feature by ahrens · Pull Request #12225 · openzfs/zfs

I assume that this relatively old D15124 is superseded (no longer needs review), true?

RAIDZ Expansion feature by ahrens · Pull Request #12225 · openzfs/zfs

Correct, the GitHub pull request is the most up-to-date version of this work.