Windows Server 2025

Windows Server 2025 New Storage Features

Take a look at the new storage options available in Windows Server 2025, including NVMe over Fabric, dedup and compression, and thin provisioning

Highlights

  • With faster flash and NVMe storage, thin provisioning is now the recommended way to configure your storage so you can allocate the overall space and only use the space on disk that is actually written.
  • One of the areas where Windows Server 2025 will introduce many new improvements is in the area of storage.
  • There are many great new features and capabilities in Windows Server 2025 new storage features that are welcome changes and improvements….

Windows Server 2025 includes many great new features that will allow organizations to have even more tools to the enterprise and cloud. One of the areas where Windows Server 2025 will introduce many new improvements is in the area of storage. Let’s consider the

Windows Server 2025 storage options

Windows Server 2025 supports many storage options in the enterprise for use cases such as running virtual machines using Hyper-V. These include:

Windows server 2025 storage options
Windows server 2025 storage options

There are also hyperconverged options with Windows Server 2025.

Windows server 2025 hyperconverged storage infrastructure
Windows server 2025 hyperconverged storage infrastructure

Finally, Windows Server 2025 offers many configurations for scale out storage configurations.

Scale out infrastructure options for storage in w2025
Scale out infrastructure options for storage in w2025

NVMe and NVMe Over Fabrics

NVMe is arguably becoming the standard for performance storage configurations. The NVMe and NVMe over Fabrics configurations are at the heart ultra-high-speed storage solutions. Windows Server 2025 fully supports NVMe storage configurations. This helps to reduce latency and increase IOPS.

According to some of the benchmarks posted by Microsoft, it has as much as a 70% performance improvement over Windows Server 2022. This will allow enterprises to make use of the full potential of their storage infrastructure that includes NVMe storage devices.

Nvme over fabric in windows server 2025
Nvme over fabric in windows server 2025

Deduplication and Compression

Windows Server 2025 uses deduplication and compression to reduces data redundancy and optimize storage space. When you have workloads that have redundant data and reused data blocks, like running very similiar virtual machines with the same operating systems, the space savings can be huge. Backups are another example of storage that can greatly benefit from deduplication and compression.

The deduplication and compression features can be managed with Windows Admin Center or PowerShell. Microsoft notes over a 60% storage reduction in virtualization and backups using deduplication and compression. The technology is also cluster-aware.

Admins can choose if they only want to use deduplication or compression only, or use both together which is the default configuration. There are also two separate compression algorithms that can be chosen to determine the aggressiveness of compression tasks.

Refs deduplication and compression in windows server 2025
Refs deduplication and compression in windows server 2025

Below is a screenshot of Windows Admin Center and the benefits from deduplication and compression:

Windows admin center deduplication and compressions benefits
Windows admin center deduplication and compressions benefits

Thin Provisioning: Maximizing Storage Agility

Thin provisioning allows for a much more efficient storage configuration. It allows administrators to configure the size of volumes and potentially overprovision the volumes to meet certain configuration requirements. Capacity can be expanded on-the-fly to meet evolving needs.

This is a great feature that is finally coming to Windows Server 2025. With faster flash and NVMe storage, thin provisioning is now the recommended way to configure your storage so you can allocate the overall space and only use the space on disk that is actually written.

Thick provisioning that we have always had was a “real” allocation of the entire amount of space configured in storage.

Thin provisioning is now supported in windows server 2025 volumes
Thin provisioning is now supported in windows server 2025 volumes

Adjustable Repair and Resync: Balancing Performance and Resiliency

Windows Server 2025 introduces adjustable repair and resynchronization settings. Administrators can now fine-tune the repair process. This can help strike a balance between maintaining VM performance and bolstering data integrity.

Note the following:

  • Repair and resynchronization can affect VMs that are resource constrained
  • Using the tunable settings, admins can adjust the speed with Windows Admin Center or using PowerShell.
  • Admins can optimize the process for either VM performance or the repair/resync operation
Windows server 2025 adjustable repair and resync speed
Windows server 2025 adjustable repair and resync speed

Wrapping up Windows Server 2025 new storage features

There are many great new features and capabilities in Windows Server 2025 new storage features that are welcome changes and improvements over past Windows Server versions, including Windows Server 2025. The new NVMe and NVMe over fabrics capabilities, deduplication and compression, and adjustable repair and resync options will give admins even more granular control over their Windows Server environments.

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Brandon Lee

Brandon Lee is the Senior Writer, Engineer and owner at Virtualizationhowto.com and has over two decades of experience in Information Technology. Having worked for numerous Fortune 500 companies as well as in various industries, Brandon has extensive experience in various IT segments and is a strong advocate for open source technologies. Brandon holds many industry certifications, loves the outdoors and spending time with family.

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