Storage server is not available
Storage policy or upload promote returned 503 Storage server is not available.
Why this happens
Server missing, disabled, offline, or otherwise unusable for the operation. Shorter catalog sibling Storage server not available (Phase 54) may appear in other locales/paths.
Diagnose and fix
1. Admin: confirm the server exists, is online, and not in trash.
2. Connect remote nodes if “not connected yet” applies.
3. If no server can take uploads, see No storage server is available for upload.
4. See Storage.