{
  "slug": "zns",
  "term": "Zoned namespaces (ZNS)",
  "aliases": [
    "NVMe ZNS"
  ],
  "definition": "An NVMe extension that exposes flash SSDs as append-only zones, aligning host writes with media erase blocks.",
  "note": "",
  "status": "limited",
  "advantages": [
    {
      "text": "Reduces FTL indirection and can lower write amplification versus fully random LBA SSDs.",
      "citationIds": [
        "c1"
      ]
    }
  ],
  "limitations": [],
  "related": [
    "nvme",
    "hm-smr",
    "ftl",
    "enterprise-ssd"
  ],
  "supersedes": [],
  "supersededBy": [],
  "firstSeen": null,
  "lastSeen": null,
  "citations": [
    {
      "id": "c1",
      "title": "Zoned Namespace",
      "url": "https://nvmexpress.org/specifications/",
      "accessed": "2026-03-26"
    }
  ]
}