{
  "slug": "open-zone-limit",
  "term": "Open-zone limit",
  "aliases": [
    "maximum open zones"
  ],
  "definition": "An open-zone limit caps the zones simultaneously in implicitly open or explicitly open states.",
  "note": "Closing a partially written zone releases an open slot but leaves an active slot occupied. Decoded Linux zonefs maximum counts use zero for no limit; do not apply that convention to raw NVMe MAR/MOR fields.",
  "status": "shipping",
  "advantages": [],
  "limitations": [],
  "supersedes": [],
  "supersededBy": [],
  "firstSeen": null,
  "lastSeen": null,
  "updated": "2026-10-11",
  "related": [
    "zns",
    "active-zone-limit",
    "zone-append"
  ],
  "citations": [
    {
      "id": "zonefs",
      "title": "Linux kernel documentation, zonefs: sequential files, explicit-open and runtime sysfs attributes.",
      "url": "https://docs.kernel.org/filesystems/zonefs.html",
      "accessed": "2026-10-11"
    },
    {
      "id": "zns-spec",
      "title": "NVM Express, Zoned Namespace Command Set Specification, revision 1.1 (cover: 18 May 2021), sections 2.1.1.4, 3.4.1, 3.4.3 and Annex A. Copyright 2007-2021 NVM Express, Inc. ALL RIGHTS RESERVED.",
      "url": "https://nvmexpress.org/wp-content/uploads/NVM-Express-Zoned-Namespace-Command-Set-Specification-1.1-2021.06.02-Ratified.pdf",
      "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"
    }
  ]
}