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Windows ReFS versions

Version number is reported by fsutil fsinfo refsinfo, available on Windows 10 and Windows Server 2016.

ReFS 1.1

  • Version of formatted by Windows Server 2012.
  • Version 1.1 is used already in Windows Server 8 Beta. I have never seen version 1.0.
  • Can use and store alternate data streams, when mount on 8.1/2012 R2 or later.

ReFS 1.2

  • Version of formatted by Windows 8.1, Windows 10 v1507 to v1607, Windows Server 2012 R2, and when specified ReFSv1 on Windows Server 2016 and Windows Server version 1709/1803.
  • Cannot use alternate data streams, when mount on 2012.

ReFS 9.2

  • Version that can be formatted with Windows 10 Technical Preview build 9841 to 9860 and Windows Server 2016 TP1 (It's not default). Could not mount in 10 9879 or 2016 TP2 and later.

ReFS 11.2

  • Version that can be formatted with Windows 10 Technical Preview build 9879 (It's not default). Could not mount in 9926 and later.

ReFS 12.2

  • Version that can be formatted with Windows 10 Technical Preview build 9926 (It's not default). Could not mount in 10041 and later.

ReFS 22.2

  • Version that can be formatted with Windows 10 Technical Preview build 10041 to 10049 (It's not default). Could not mount in 10061 and later.

ReFS 2.0

  • Version of formatted by Windows Server 2016 TP2/TP3.
  • Version that can be formatted with between Windows 10 Technical Preview build 10061 or later and earlier than 10130 (It's not default). Could not mount in Windows 10 Insider Preview build 10130 and later, or Windows Server 2016 TP4 and later.

ReFS v2 Overview
http://www.snia.org/sites/default/files/SDC15_presentations/file_sys/JRTipton_ReFS_v2.pdf
http://www.snia.org/events/storage-developer/presentations15#file_sys

ReFS 3.0

  • Version of formatted by Windows Server 2016 TP4/TP5.
  • Upgrade to 3.1 when writable mount from Windows Server 2016 RTM.

ReFS 3.1

  • Version of formatted by Windows Server 2016.

ReFS 3.2

  • Version of formatted by Windows 10 v1703.
  • Version that can be formatted with Windows 10 Insider Preview 15002 or later (It's not default at 15002) and Windows Server Insider Preview build 16237.
    • It became the default between after than 15002 and 15019 or earlier.

ReFS 3.3

ReFS 3.4

  • Version of formatted by Windows 10 Enterprise v1803 and Windows Server version 1803.
  • Version of formatted by Windows 10 Enterprise Insider Preview build 17083 and Windows Server Insider Preview build 17079.

Mountability

ReFS\Windows 2012 8.1/2012 R2 10 v1507 to v1607 2016 10 v1703 10 v1709/WS v1709 10 v1803/WS v1803
1.1 Yes Yes[^1] Yes[^1] Yes[^1] Yes[^1] Yes[^1] Yes[^1]
1.2 Yes Yes Yes Yes Yes Yes Yes
3.1 No No No Yes Yes[^2] Yes[^3] Yes[^4]
3.2 No No Yes Yes[^3] Yes[^4]
3.3 No No Yes Yes[^4]
3.4 No Yes

Notes
Empty filed is "I don't know. I haven't tested.".
[^1]: "Volume "?:" was mounted in an older version of Windows. Some features may be lost." was recorded to event log. I don't know what's been lost.
[^2]: Upgrade to 3.2 when writable mount.
[^3]: Upgrade to 3.3 when writable mount.
[^4]: Upgrade to 3.4 when writable mount.

License: CC BY

バージョン番号はWindows 10とWindows Server 2016で使用可能なfsutil fsinfo refsinfoで報告されるもの。

ReFS 1.1

  • Windows Server 2012でフォーマットしたバージョン。
  • Windows Server 8 Betaの時点で1.1であり1.0の存在は不明。
  • 8.1/2012 R2以降でマウントした場合はAlternate Data Stream使用可能。

ReFS 1.2

  • Windows 8.1、Windows 10 v1507からv1607、Windows Server 2012 R2でフォーマットしたとき、およびWindows Server 2016とWindows Server v1709/v1803でReFSv1を指定してフォーマットしたときのバージョン。
  • 2012でマウントした場合はAlternate Data Stream使用不可。

ReFS 9.2

  • Windows 10 TP ビルド9841から9860とWindows Server 2016 TP1でフォーマット可能なバージョン(デフォルトではない)。10 9879/ 2016 TP2以降ではマウント不可。

ReFS 11.2

  • Windows 10 TP ビルド9879でフォーマット可能なバージョン(デフォルトではない)。9926以降ではマウント不可。

ReFS 12.2

  • Windows 10 TP ビルド9926でフォーマット可能なバージョン(デフォルトではない)。10041以降ではマウント不可。

ReFS 22.2

  • Windows 10 TP ビルド10041から10049でフォーマット可能なバージョン(デフォルトではない)。10061以降ではマウント不可。

ReFS 2.0

  • Windows Server 2016 TP2/TP3でフォーマットしたバージョン。
  • Windows 10 TP ビルド10061から10130より前でフォーマット可能なバージョン(デフォルトではない)。10 10130以降、2016 TP4以降ではマウント不可。

ReFS v2の概要
http://www.snia.org/sites/default/files/SDC15_presentations/file_sys/JRTipton_ReFS_v2.pdf
http://www.snia.org/events/storage-developer/presentations15#file_sys

ReFS 3.0

  • Windows Server 2016 TP4/TP5でフォーマットしたバージョン。
  • Windows Server 2016から書き込み可能でマウントすると3.1にアップグレードされる。

ReFS 3.1

  • Windows Server 2016でフォーマットしたバージョン。

ReFS 3.2

  • Windows 10 v1703でフォーマットしたバージョン。
  • Windows 10 Insider Preview 15002およびWindows Server Insider Previewビルド16237でフォーマット可能なバージョン(15002ではデフォルトではない)。
    • 15002より後、15019までの間にデフォルトになった。

ReFS 3.3

ReFS 3.4

  • Windows 10 Enterprise v1803およびWindows Server version 1803でフォーマットしたバージョン。
  • Windows 10 Enterprise Insider Preview 17083およびWindows Server Insider Previewビルド17079でフォーマットしたバージョン。

マウント可否

ReFS\Windows 2012 8.1/2012 R2 10 v1507 to v1607 2016 10 v1703 10 v1709/WS v1709 10 v1803/WS v1803
1.1 Yes Yes[^1] Yes[^1] Yes[^1] Yes[^1] Yes[^1] Yes[^1]
1.2 Yes Yes Yes Yes Yes Yes Yes
3.1 No No No Yes Yes[^2] Yes[^3] Yes[^4]
3.2 No No Yes Yes[^3] Yes[^4]
3.3 No No Yes Yes[^4]
3.4 No Yes

空欄は「テストしてないので分かりません」を意味します。

  1. イベントログに「ボリューム "?:" は、以前のバージョンの Windows にマウントされていました。一部の機能が失われた可能性があります。」が出力される。具体的に何が失われるのかは不明。
  2. 書き込み可能でマウントすると3.2にアップグレードされる。
  3. 書き込み可能でマウントすると3.3にアップグレードされる。
  4. 書き込み可能でマウントすると3.4にアップグレードされる。

License: CC BY

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kcschan Mar 7, 2017

The integrity stream seems to be available in lower version(1.2), and the system seems to choose different CRC alogrithms according to cluster size(CRC32 for 4K cluster, CRC64 for 64K cluster)

kcschan commented Mar 7, 2017

The integrity stream seems to be available in lower version(1.2), and the system seems to choose different CRC alogrithms according to cluster size(CRC32 for 4K cluster, CRC64 for 64K cluster)

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artem-nefedov Aug 3, 2018

Did anyone test what would happen if you attach read-only (write-protected) storage with lower ReFS version (e.g. 3.3) to Windows with higher version support (e.g. 3.4)?

artem-nefedov commented Aug 3, 2018

Did anyone test what would happen if you attach read-only (write-protected) storage with lower ReFS version (e.g. 3.3) to Windows with higher version support (e.g. 3.4)?

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adnanshaheen Aug 7, 2018

I think if you format with 3.3 and then upgrade to 3.4 your FS is no more recognizable. I did a test a few days earlier when I format a volume on windows 10 pre 1803 and then after update to 1803 it wasn't recognizable.

adnanshaheen commented Aug 7, 2018

I think if you format with 3.3 and then upgrade to 3.4 your FS is no more recognizable. I did a test a few days earlier when I format a volume on windows 10 pre 1803 and then after update to 1803 it wasn't recognizable.

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0xbadfca11 Aug 9, 2018

@artem-nefedov When use write-protected storage, can mount it, can read it, version will stay as is. It has been tested at [^2], [^3] and [^4].

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0xbadfca11 commented Aug 9, 2018

@artem-nefedov When use write-protected storage, can mount it, can read it, version will stay as is. It has been tested at [^2], [^3] and [^4].

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