Module user storage encrypted Future

User Storage Encrypted Module - Future Enhancements

Scope

• hardening and refinement of encrypted user-storage runtime behavior
• stronger reliability and diagnosability for backend and scheduler paths
• benchmark-backed release guardrails for encrypted storage hot paths

Design Constraints

• backend and scheduler contracts remain backward compatible within the major line.
• failures in mount, unmount, derivation, and rotation paths remain explicit.
• tier orchestration remains bounded to configured storage levels.
• host-environment dependency remains visible rather than hidden by silent fallback.

Required Interfaces

Interface	Requirement
backend interfaces	deterministic availability, mount-state, mount, and unmount behavior
key interfaces	bounded derivation and rotation semantics
orchestration interfaces	explicit level coordination and lifecycle behavior

Implementation Notes

• tighten parity between backend failure handling and operator-visible diagnostics.
• deepen coverage for scheduler recovery and callback failure behavior.
• broaden integration scenarios for encrypted storage lifecycle round trips.
• expand benchmarks beyond current mount-latency emphasis where justified.

Test Strategy

• unit and integration suites for backend, key, and orchestration behavior.
• regressions for host-environment absence, invalid paths, and scheduler edge cases.
• deterministic lifecycle tests for full encrypted storage round trips.
• release-profile benchmark runs for mapped encrypted-storage targets.

Performance Targets

• encrypted storage hot paths remain inside regression budgets.
• mount lifecycle latency and dispatch overhead remain stable at p95/p99 envelopes.
• mapped benchmark manifests reach no-missing-case status for release gating.

Security / Reliability

• preserve explicit failure signaling for backend and scheduler faults.
• maintain bounded failure propagation across storage levels.
• enforce predictable degradation when host encrypted-storage prerequisites are missing.
• keep diagnostics actionable for production encrypted-storage incidents.

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