Windows 11, Microsoft Adds ReFS Support, What Is It?

Microsoft is quietly adding ReFS support to Windows 11. This is nothing new. ReFS was introduced with Windows Server 2012. ReFS is short for Resilient File System.

It is a proprietary file system developed by Microsoft. It has been around for ten years now. Microsoft states that its goal is to ” Maximize data availability, efficiently scale large data sets across diverse workloads, and ensure data integrity while resilience against corruption. »

To achieve this, this advance improves some features of the NTFS file system but also removes some of them. So we have big differences between the two file systems.

ReFS, highlights

For example, ReFS is able to handle file and volume sizes of up to 35 petabytes where NTFS is limited to 256 terabytes. One petabyte equals 1024 terabytes. ReFS has exclusive features like Block clone, Sparse VDL, accelerated parity or file-level snapshots.

Block cloning converts physical file copy operations into logical operations. This advancement translates into faster processing and reduced system resource requirements, particularly on the I/O (Input/Output) side.

In the same spirit, Sparse VDL reduces creation time for static virtual hard disks. For its part, accelerated mirroring parity ensures high performance and capacity-efficient storage, while file-level snapshots allow the creation of a new file containing the data and attributes of the source file.

Wikipedia Clarifies that ReFS does not support named streams, object IDs, 8.3 file names, NTFS compression, Encrypting File System (EFS), NTFS transactions, hard links, extended attributes, and disk quotas. Finally, Windows cannot be booted from a ReFS volume.

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Windows 11 and ReFS.

This ReFS add-on has been done in secret so some information will not be known. Discovered by copy Windows 11 Professional operating system. However, ReFS may only be possible with certain versions. We can cite Enterprise, Education and Workstation editions as an example.

Note that there is no tool to convert an NTFS-formatted volume to ReFS. This means that you must choose ReFS during the initial configuration of the disk. To activate its support, you must use the ViVeTool utility ID42189933. This only pertains to Windows 11 previews released as part of the Windows Insider Program.

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