Resilient File System (ReFS) is a new Microsoft’s filesystem introduced for the first time in Windows Server 2012 with the intent of becoming the “next generation” filesystem after the “old” NTFS (first NTFS version was for Windows NT 3.1). Starting with Windows Server 2016, ReFS is the default filesystem for some workloads and some solutions (like S2D). To provide greater resiliency for its metadata, the Resilient File System (ReFS) in Windows Server 2016 uses allocate-on-write semantics for all metadata updates. This means that ReFS never makes in-place updates to metadata. Instead, it makes all writes […]