# openzfsonwindows/ZFSin

OpenZFS on Windows port - old repo, use `OpenZFS` repo

Repository: https://github.com/openzfsonwindows/ZFSin
Canonical: https://ross.abutalabs.com/products/zfsin
Homepage: https://openzfsonwindows.org
Language: C
License Family: other
Last push: 2024-05-23T07:49:42+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3458, "days_push": 832, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1223, forks 68 (observed 2026-08-28T04:04:02.615963+00:00)

## What it is
ZFSin is a port of the OpenZFS filesystem to Windows, implemented as a native kernel driver providing pooled storage, checksums, snapshots, and compression. This repository is the old port and has been superseded by the openzfsonwindows/openzfs repository.

## Use cases
- mount zfs pools on windows
- zfs filesystem driver for windows 10
- self-healing storage with checksums on windows
- zfs snapshots and shadow copies on windows
- use zfs drive letters in file explorer

## When to choose
- you need ZFS features like pooled storage, integrity verification, or snapshots on Windows
- you want to maintain or study the legacy Windows ZFS port

## When to avoid
- you are starting a new project - use the newer openzfsonwindows/openzfs repo instead
- you need a supported, actively developed ZFS-on-Windows implementation
- you need a filesystem on Linux, macOS, or BSD where native OpenZFS exists

## Facets
- artifact type: application
- maturity: maintenance
- function: file-system, cryptography, compression
- domain: operating-systems, files, self-hosted
- platform: windows, cpp, c
- tags: zfs, kernel-driver, storage, filesystem, windows-driver, deprecated-repo

## Member repositories
- openzfsonwindows/ZFSin (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:02.615963+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:15:34.228929+00:00, confidence not recorded.
  - readme: https://github.com/openzfsonwindows/ZFSin (fetched 2026-08-28T04:04:02.615963+00:00, sha 92e349b40687)
  - homepage: https://openzfsonwindows.org (fetched 2026-08-29T12:23:47.365263+00:00, sha 2690af0de5bf)
- Data as of 2026-08-30T08:39:29.467469+00:00.