infra/docs/atlas-sharing-decision.md

Atlas SMB/NFS namespace decision

Decision date: 2026-09-30. Keep the current namespaces separate.

• /zpool/archive is the SMB3 Archive share for authorized Samba accounts.
• /zpool/media/photobook is the Aegis-only NFSv4 export, all_squash-mapped to UID/GID 1100.
• No new dual-protocol namespace, broad export, group, or ACL model is needed. Existing permissions and client access remain unchanged.

The two paths serve different ownership and exposure needs. A common namespace would expand the permissions design and require same-file SMB/NFS interoperability testing without a present requirement. Revisit only when a specific workflow needs both protocols on the same files; then decide UID/GID, group, POSIX ACL, SELinux policy and client behavior before changing exports or permissions.

Read-only Atlas verification on 2026-09-30 confirmed that Samba Archive points to /zpool/archive, NFS exports /zpool/media/photobook only to 192.168.178.54 with all_squash and anonymous UID/GID 1100, both datasets are distinct, and zpool is healthy. No sharing configuration was changed.