{
  "slug": "zone-capacity",
  "term": "Zone capacity",
  "aliases": [
    "ZCAP"
  ],
  "definition": "Zone capacity is the maximum number of logical blocks that may be written within a zone.",
  "note": "Zone size describes the address span. Capacity may be smaller, leaving an unwritable tail; multiply logical-block counts by the formatted data bytes per LBA before comparing byte capacities. Early Finish can strand additional unwritten capacity until reset.",
  "status": "shipping",
  "advantages": [],
  "limitations": [],
  "supersedes": [],
  "supersededBy": [],
  "firstSeen": null,
  "lastSeen": null,
  "updated": "2026-10-11",
  "related": [
    "zns",
    "zoned-block-device",
    "active-zone-limit"
  ],
  "citations": [
    {
      "id": "zns-docs",
      "title": "Western Digital, Zoned Storage: NVMe Zoned Namespaces devices, capacity and resource limits.",
      "url": "https://zonedstorage.io/docs/introduction/zns",
      "accessed": "2026-10-11"
    },
    {
      "id": "zoned-overview",
      "title": "Western Digital, Zoned Storage: device models, zone types, management commands and Zone Append.",
      "url": "https://zonedstorage.io/docs/introduction/zoned-storage",
      "accessed": "2026-10-11"
    },
    {
      "id": "hesela-zns",
      "title": "Hesela: ZNS resource limits and worked examples",
      "url": "https://hesela.com/analyses/zns-open-active-zone-limits/",
      "accessed": "2026-10-11"
    }
  ]
}