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newdrive/docs/adr/0001-postgresql-btrfs-cow.md
Elijah f24e96efa7
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Harden CI and switch release builds to tagged immutable images
2026-07-15 19:21:07 -07:00

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ADR-0001: PostgreSQL on btrfs with CoW

Status: Accepted

PostgreSQL data remains on the mirrored exclusive btrfs cache with copy-on-write and PostgreSQL page checksums enabled. chattr +C is not used because it would remove btrfs data checksums and mirror self-healing for database files. Capacity, WAL growth, and fragmentation will be monitored when operations work is implemented.