resource-control/data/optimization/platform-audit-storage-2026-08.json

{
  "schema_version": "0.1",
  "record_scope": "operational",
  "case_id": "opt:platform-audit-storage:2026-08",
  "case_type": "provider_switch",
  "trigger": "procurement",
  "review_period": "2026-08",
  "created_at": "2026-08-14T00:00:00Z",
  "resource_ids": [
    "resource:platform:audit-storage"
  ],
  "baseline": {
    "option_id": "scaleway-standard-multi-az",
    "label": "Scaleway Standard Multi-AZ object storage (nl-ams), provisional primary from due diligence",
    "one_time_eur": 0,
    "recurring_infrastructure_eur_month": 7.35,
    "recurring_internal_labor_eur_month": 60,
    "recurring_external_labor_eur_month": 0,
    "utilization": {
      "stored_gb": {
        "provisioned": { "value": 457.968, "unit": "GB" },
        "used": { "value": 457.968, "unit": "GB" }
      }
    },
    "uncertainty": {
      "level": "medium",
      "notes": [
        "Month-12 base-scenario figures from tools/cost_model.py, not a booked invoice",
        "Elastic capacity: provisioned equals used by construction, so the ratio does not signal waste",
        "Published list price; no account quote or committed discount"
      ]
    },
    "service_constraints": {
      "retention_days": { "value": 30, "unit": "days" },
      "target_rpo_minutes": { "value": 5, "unit": "minutes" }
    },
    "failure_domains": [
      "provider:scaleway",
      "region:nl-ams"
    ],
    "exit_path": "Delete objects and buckets, revoke the scoped access key, close the project, and confirm removal; modelled exit cost EUR 243.83.",
    "unknowns": []
  },
  "alternatives": [
    {
      "option_id": "hetzner-object-storage",
      "label": "Hetzner Object Storage (nbg1), monthly base price including 1 TB storage and egress",
      "one_time_eur": 0,
      "recurring_infrastructure_eur_month": 6.49,
      "recurring_internal_labor_eur_month": 90.0,
      "recurring_external_labor_eur_month": 0,
      "utilization": {
        "stored_gb": {
          "provisioned": { "value": 1000, "unit": "GB" },
          "used": { "value": 457.968, "unit": "GB" }
        }
      },
      "uncertainty": {
        "level": "medium",
        "notes": [
          "Priced only within the included 1 TB quota; excess storage and egress rates are not published in the recorded source",
          "The base scenario stays inside the quota, so the high scenario cannot be evaluated from this option"
        ]
      },
      "service_constraints": {
        "retention_days": { "value": 30, "unit": "days" },
        "target_rpo_minutes": { "value": 5, "unit": "minutes" }
      },
      "failure_domains": [
        "provider:hetzner",
        "region:nbg1"
      ],
      "exit_path": "Delete objects and buckets, revoke the S3 credential, cancel the subscription; modelled exit cost EUR 240.00.",
      "unknowns": []
    },
    {
      "option_id": "host-europe-cloud-storage",
      "label": "Host Europe Cloud Storage, same provider as the reef-railiance compute host",
      "one_time_eur": null,
      "recurring_infrastructure_eur_month": null,
      "recurring_internal_labor_eur_month": 120,
      "recurring_external_labor_eur_month": 0,
      "utilization": {
        "stored_gb": {
          "provisioned": { "value": null, "unit": "GB" },
          "used": { "value": 457.968, "unit": "GB" }
        }
      },
      "uncertainty": {
        "level": "high",
        "notes": [
          "Only a historical published price and service specification exists; current orderability for this account is unconfirmed",
          "Co-located with railiance01, so a provider-level failure would remove the primary host and the backup copy together"
        ]
      },
      "service_constraints": {
        "retention_days": { "value": 30, "unit": "days" },
        "target_rpo_minutes": { "value": 5, "unit": "minutes" }
      },
      "failure_domains": [
        "provider:host-europe"
      ],
      "exit_path": null,
      "unknowns": [
        "current S3 orderability for this account (owner: human account authority via Host Europe support)",
        "storage_eur_per_gb_month, monthly_minimum_eur, egress_eur_per_gb, operations_eur_per_month, support_eur_per_month",
        "cancellation terms and minimum contract period",
        "correlated-failure acceptance for same-provider placement (owner: human financial and risk authority)"
      ]
    }
  ],
  "decision": {
    "state": "blocked_on_evidence",
    "recommended_option_id": null,
    "rationale": "This case exercises the optimization process against real cost-model output; it is not the procurement decision, which RESOURCE-WP-0002-T03 owns and human financial authority approves. Hetzner computes fully and is EUR 29.14 per month more expensive than the Scaleway baseline at month-12 base demand, driven by operator labour rather than storage price. Host Europe cannot be compared at all: its price, cancellation terms, and current orderability are unknown, and it shares a failure domain with the compute host it is meant to protect. No provider is recommended until Host Europe returns written account evidence.",
    "approver": null,
    "approved_on": null,
    "delegated_to": []
  },
  "financial_handoff": {
    "cost_attribution_key": "platform:audit-storage",
    "sent": false,
    "reference": null
  },
  "outcome": {
    "feeds_forecast": [
      "data/forecasts/platform-audit-storage-scaleway-base-2026-08.json"
    ],
    "actual_refs": []
  },
  "evidence": [
    {
      "kind": "forecast",
      "ref": "tools/cost_model.py base scenario month 12 over data/demand/platform-audit-storage.json",
      "authority": "resource-control",
      "observed_at": "2026-08-14"
    },
    {
      "kind": "document",
      "ref": "docs/evidence/RESOURCE-WP-0002-provider-due-diligence-2026-08-10.md",
      "authority": "resource-control",
      "observed_at": "2026-08-10"
    },
    {
      "kind": "document",
      "ref": "docs/evidence/RESOURCE-WP-0002-expanded-storage-comparison-2026-08-10.md",
      "authority": "resource-control",
      "observed_at": "2026-08-10"
    },
    {
      "kind": "workplan",
      "ref": "RESOURCE-WP-0002-T03",
      "authority": "resource-control",
      "observed_at": null
    }
  ]
}