skydick: add mirrored NVMe special vdev + mirrored SLOG

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Skyworks / skyworks-Nix-infra

Browse code skydick: add mirrored NVMe special vdev + mirrored SLOG Replaced single-drive SLOG + L2ARC with dual-Optane mirrored setup: - 690G mirrored special vdev for metadata + files ≤128K - 8G mirrored SLOG for sync writes - special_small_blocks=128K set in ZFS properties service - nvme1 formatted to 4Kn to match nvme0 The special vdev is the biggest performance win for an HDD pool: all metadata lookups, directory listings, and small files now hit NVMe. Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]> main
1 parent 21191a6 commit dd3841f6140b2e775ab9415dd95d8d02a5f897c7 Dixiao-L authored 19 days ago

Browse code

Replaced single-drive SLOG + L2ARC with dual-Optane mirrored setup:
- 690G mirrored special vdev for metadata + files ≤128K
- 8G mirrored SLOG for sync writes
- special_small_blocks=128K set in ZFS properties service
- nvme1 formatted to 4Kn to match nvme0

The special vdev is the biggest performance win for an HDD pool: all
metadata lookups, directory listings, and small files now hit NVMe.

Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>

main

1 parent 21191a6 commit dd3841f6140b2e775ab9415dd95d8d02a5f897c7

Dixiao-L authored 19 days ago

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