Veeam Backup Repository file system NTFS or ReFS?

Oct 21, 2021

When it comes to choosing the file system for your Veeam Backup Repository, two popular options are NTFS and ReFS. Each file system has its own advantages and considerations to take into account. In this article, we will delve into the details of both NTFS and ReFS to help you make an informed decision for your backup infrastructure.

NTFS - New Technology File System

NTFS, short for New Technology File System, has been the default file system for Windows operating systems for many years. It offers a range of functionalities and features that make it a reliable choice for Veeam Backup Repository.

Advantages of NTFS for Veeam Backup Repository

  • Enhanced Security: NTFS provides advanced security permissions and access control, ensuring that only authorized users can access the backup data.
  • File and Folder Compression: NTFS allows you to compress files and folders, reducing storage space requirements without impacting performance.
  • File Encryption: With NTFS, you can encrypt your backup data, adding an extra layer of protection against unauthorized access.
  • Support for Large File Sizes: NTFS supports very large file sizes, making it suitable for storing backups of any size.
  • Reliability: NTFS has proven to be a robust and reliable file system over the years, offering data integrity and recovery mechanisms.

Considerations for Using NTFS

While NTFS offers many advantages, there are a few considerations to keep in mind:

  • Fragmentation: NTFS is prone to fragmentation, which can affect performance over time. Regular defragmentation is recommended to maintain optimal performance.
  • Journaling Overhead: NTFS uses a journaling feature to enhance reliability, but it can impact performance in scenarios involving heavy write operations.
  • Older OS Compatibility: If you plan to use older versions of Windows as backup targets, compatibility with NTFS should be ensured.

ReFS - Resilient File System

ReFS, short for Resilient File System, is a newer file system introduced by Microsoft as a successor to NTFS. It brings several improvements specifically geared towards data protection and reliability.

Advantages of ReFS for Veeam Backup Repository

  • Data Integrity: ReFS uses data integrity checks to detect and correct data corruption, ensuring the integrity of your backup data.
  • Scalability: ReFS is designed to handle large amounts of data and is optimized for performance with massive storage systems.
  • Snapshot and Fast Cloning: ReFS supports advanced snapshot and cloning capabilities, enabling fast and efficient backup and restore operations.
  • Error Resiliency: ReFS employs mechanisms to automatically repair common errors, reducing the need for manual intervention during backup operations.

Considerations for Using ReFS

While ReFS offers compelling features, there are a few considerations to be aware of:

  • Compatibility: ReFS is only available on certain editions of Windows Server and Windows 10, so compatibility with target systems must be confirmed.
  • No Native Compression: ReFS does not support file and folder compression, which can impact storage space requirements.
  • Journaling Activity: ReFS performs more journaling activity compared to NTFS, potentially affecting performance in specific scenarios.


Choosing between NTFS and ReFS as the file system for your Veeam Backup Repository depends on your specific requirements, target systems, and future scalability plans. NTFS offers proven reliability, enhanced security, and mature features, while ReFS brings advanced data protection mechanisms and scalability.

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Temilayo Awofeso
The ability to rely on integrity streams in ReFS for data protection is definitely an appealing feature.
Oct 28, 2023
Kent Kettle
The integrity streams of ReFS are an interesting feature. It's definitely a strong point for data reliability.
Oct 21, 2023
Matej Krepfl
The ability to address silent data corruption with ReFS is a persuasive factor for our backup strategy.
Oct 12, 2023
Evette Thompson
I have concerns about data deduplication performance on both NTFS and ReFS. More details on this would be useful.
Oct 5, 2023
Jill Zweigbaum
👍 Great comparison! This article gives a detailed breakdown of the advantages and considerations of NTFS and ReFS for Veeam Backup Repository. Very helpful!
Oct 4, 2023
Praful Kaul
The comparison of NTFS and ReFS in this article has shed light on important factors to consider for backup storage.
Sep 26, 2023
Qiu-Xing Jiang
I prefer NTFS for its compatibility across various platforms, but ReFS does seem to offer some compelling features.
Aug 27, 2023
Adnan Shahid
The article provides a thoughtful comparison of NTFS and ReFS. It's making me rethink my file system choice.
Aug 23, 2023
Michael Bopp
I've always used NTFS, but ReFS's handling of checksums and error correction is intriguing.
Aug 3, 2023
Shane Barton
It's important to weigh the advantages and drawbacks of NTFS and ReFS carefully for backup storage.
Jul 26, 2023
Aj Whitten
The article offers a helpful comparison of the strengths and weaknesses of NTFS and ReFS for backup repositories.
Jul 10, 2023
Ahmed Attalla
I didn't realize the impact of file size limits between NTFS and ReFS. Definitely something to keep in mind.
Jul 6, 2023
Mark Smith
The practical insights into the considerations for choosing between NTFS and ReFS for backup storage are valuable.
Jul 3, 2023
Nancy Baker
NTFS has been reliable for our backups, but the ability of ReFS to detect and repair corruption is enticing.
Jun 27, 2023
Vincent Azzarello
The file corruption repair capability of ReFS is an important consideration for long-term data protection.
May 26, 2023
Miranda Cartwright
The data verification aspect of ReFS is particularly enticing. It's an important factor in backup storage.
May 25, 2023
Vicente Campos
I appreciate the detailed insight into the factors to consider when choosing NTFS or ReFS for backup repositories.
May 25, 2023
Katia Bocarius
NTFS's compatibility with older systems is a strong point, but ReFS's resistance to corruption is compelling.
Apr 26, 2023
Dan Schweizer
I've been researching the best file system for our backup repository, and this article has been helpful.
Apr 8, 2023
Mark Shaw
The use of ReFS for backup repositories seems to offer enhanced data integrity and resilience.
Mar 28, 2023
Leonardo Avesani
The possibility of leveraging fast cloning with ReFS is an intriguing aspect to consider for our backups.
Mar 18, 2023
Richard Seabrook
The support for multi-path I/O in ReFS appears to be a significant advantage for backup performance.
Mar 14, 2023
Chrissy Sexton
I appreciate the breakdown of the differences between NTFS and ReFS. It's helpful to weigh the pros and cons.
Mar 9, 2023
Anam Mamun
The article provides a good overview of the considerations when choosing between NTFS and ReFS for backup solutions.
Feb 19, 2023
Michael Wilson
I've encountered issues with NTFS fragmentation, so the idea of using ReFS is appealing from that standpoint.
Feb 13, 2023
The snapshot functionality of ReFS seems like a valuable feature for maintaining data integrity.
Jan 31, 2023
Sibghat Qureshi
I'm curious about the impact of data deduplication support on the performance of NTFS and ReFS.
Jan 22, 2023
Alex Li
The discussion around the benefits of using NTFS versus ReFS is thought-provoking and informative.
Jan 21, 2023
Freddie Wynne
The considerations for choosing NTFS or ReFS outlined in this article have been quite insightful.
Dec 26, 2022
James Shocrylas
I've been considering using ReFS for performance and resilience, but NTFS has been reliable for us so far.
Nov 8, 2022
Kathy Braun
The resilience of ReFS against data corruption is an important advantage to consider for our backup needs.
Nov 6, 2022
Philippe Duranton
The scalability of ReFS is hard to ignore. This is definitely something to take into consideration.
Oct 25, 2022
Bill Nichols
NTFS has served us well, but after reading this article, I'm interested in exploring the benefits of ReFS.
Oct 16, 2022
Robert Kersting
I'd like to hear more about how ReFS handles large-scale backup scenarios compared to NTFS.
Oct 15, 2022
Matthew Bronson
I've been considering migrating from NTFS to ReFS for our backups. This article has helped me understand the benefits.
Oct 15, 2022
Steven Marcus
I'm convinced that ReFS's resilience against corruption makes it a compelling choice for backup storage.
Sep 29, 2022
Anthony Campopiano
I appreciate the practical insights provided in the comparison of NTFS and ReFS for backup repositories.
Aug 31, 2022
Jerusha Minnebo
I'd like to see some real-world performance comparisons between NTFS and ReFS before making a decision.
Jun 27, 2022
Johnnie Blankenship
The benefits of using NTFS or ReFS for Veeam Backup Repository are well laid out in this article.
Apr 15, 2022
Keith Claussner
I'm impressed by the fault tolerance mechanisms of ReFS. It's definitely worth exploring further.
Mar 30, 2022
Nicole Borger
Our team has been debating this decision. The article has shed some light on the key considerations.
Mar 11, 2022
Gordon Divine
The resilience of ReFS against bit rot makes it a strong contender for our backup repository.
Mar 11, 2022
David Deitz
The metadata integrity feature of ReFS is quite appealing. It seems like a good option for data protection.
Mar 3, 2022
Steven Stokely
The comparison of NTFS and ReFS's handling of small files is an interesting point to consider for backups.
Feb 13, 2022
Robert Allen
I'm leaning towards ReFS for our Veeam Backup Repository due to its support for large volumes.
Jan 30, 2022
Duane Atkins
I've always trusted NTFS for our backup storage, but ReFS's self-healing capabilities are compelling.
Jan 6, 2022
Tobias Junge
ReFS looks like a solid choice for backup repositories, especially with its support for huge volumes.
Jan 1, 2022
Pamela Brunte
The use of emojis in the comments seems excessive here 😊. However, the comparison is insightful and helpful.
Dec 4, 2021
Bev Rude
I've had good experiences with NTFS, but ReFS's handling of drive failure gives me pause.
Nov 13, 2021
Jonathan Dix
The article has raised important factors to consider when choosing between NTFS and ReFS for Veeam backup storage.
Oct 31, 2021
Richard Shaw
I'm interested in learning more about the performance implications of using NTFS versus ReFS for backups.
Oct 27, 2021