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ReFS

Resilient File System (ReFS), codenamed "Protogon", is a Microsoft proprietary file system introduced with Windows Server 2012 with the intent of becoming the "next generation" file system after NTFS.

ReFS was designed to overcome issues that had become significant over the years since NTFS was conceived, which are related to how data storage requirements had changed. The key design advantages of ReFS include automatic integrity checking and data scrubbing, removal of the need for running chkdsk, protection against data degradation, built-in handling of hard disk drive failure and redundancy, integration of the RAID functionality, a switch to copy/allocate on write for data and metadata updates, handling of very long paths and filenames, and storage virtualization and pooling, including almost arbitrarily sized logical volumes (unrelated to the physical sizes of the used drives).

These requirements arose from two major changes in storage systems and usage — the size of storage in use (large or massive arrays of multi-terabyte drives now being fairly common), and the need for continual reliability. As a result, the file system needs to be self-repairing (to prevent disk checking from being impractically slow or disruptive), along with abstraction or virtualization between physical disks and logical volumes.

ReFS was initially added to Windows Server 2012 only, with the aim of gradual migration to consumer systems in future versions (although modifications were quickly developed by enthusiasts for the latter). The initial versions removed some NTFS features, such as disk quotas, alternate data streams, and extended attributes, causing concern among onlookers. Some of these were re-implemented in later versions of ReFS.

In early versions (2012–2013), ReFS was similar or slightly faster than NTFS in most tests, but far slower when full integrity checking was enabled, a result attributed to the relative newness of ReFS. Pre-release concerns were also voiced by one blogger over Storage Spaces, the storage system designed to underpin ReFS, which reportedly could fail in a manner that prevented ReFS from recovering automatically.

Wiktionary

refs

n. 1 (plural of ref English)Category:English plurals 2 (context British police slang English) A scheduled meal break during a shift, short for refreshments. vb. (en-third-person singular of: ref)

Usage examples of "refs".

The center judge and the four corner refs called breaks whenever a competitor drew breath.

At the moment, Ned Gage was out on the floor, sorting refs and competitors for more events.