In Windows Server 2019, which volumes allow data deduplication?

Data deduplication in Windows Server 2019 is a feature that helps to save storage space by identifying and eliminating duplicate copies of data. The correct choice states that NTFS and ReFS volumes permit data deduplication, with the exception of boot or system volumes.

NTFS (New Technology File System) is the traditional file system for Windows that supports features like permissions, encryption, and indeed, data deduplication. ReFS (Resilient File System), introduced in Windows Server 2012, is designed to handle large amounts of data and offers improved data integrity and scalability. However, both file systems restrict deduplication operations on boot and system volumes to ensure the integrity and functionality of the operating system and critical files.

Volumes that are used to boot the operating system or contain system files need to remain stable and consistently accessible, making them unsuitable for the data deduplication process, which can introduce potential complications. Therefore, the restriction on boot and system volumes is essential for both reliability and performance.

The mention of all storage volumes or only NTFS volumes would not accurately capture the specifics of Windows Server 2019's data deduplication capabilities. Overall, the statement in the correct choice accurately outlines the environments in which data deduplication