We are committed to providing fast, efficient, and affordable software solutions that set new standards in the software development industry.
  • What is XFS

The XFS system was originally developed as a 64-bit file system for the Unix-based operating system (OS) known as IRIX in 1994. It's received regular updates since then, ultimately being released to open source communities in 1999 and becoming a mainstay in most Linux distros by the early 2000s. Red Hat Enterprise Linux 7.0, which was released in 2014, even uses XFS as its default file system.

Primary Features
Linux distros with XFS give users numerous advantages over other file systems, including:

  • Data journaling: Journaling protects your system from crashes and sudden power outages while writing data to a serial journal before updating the disk blocks on the hard drive. It ultimately provides greater data consistency and integrity than other methods of writing data.
  • Storage capacity: Since it's a 64-bit file system, XFS can support large-capacity hard drives. It's currently compatible with a maximum of approximately 8 exibytes, but 32-bit installations are limited to 16 tebibytes. Regardless, this is a substantial amount of storage space.
  • Sparse files: One reason why XFS can accommodate such large file sizes is by providing a 64-bit spare address space for every file on the hard drive. By using extent mapping for these files, the final file allocation map is kept at a minimum size.
  • Allocation: XFS also excels at data allocation, including striped allocation in RAID setups, extent-based allocation, and delayed allocation. It also uses internal partitions to create allocation groups that can optimize I/O performance – especially when using multiple processors or cores.
  • Input / Output (I/O): When it was originally developed for IRIX, XFS used a guaranteed-rate I/O that let certain applications reserve the necessary bandwidth ahead of time. In modern deployments, XFS uses the direct I/O method.
  • Partition Management: The XFS file system can expand partitions at any time – including during normal disk operations – as long as there is enough unallocated space on the drive.
  • Online defragmentation: Another advantage of XFS is its natural resistance to disk fragmentation. However, in the case that an XFS-based hard drive starts to experience fragmentation, the built-in defrag utility, xfs_growfs, is usable even during normal system operations.

As you can see, there are numerous advantages to using XFS over other file systems. However, there are some drawbacks and disadvantages to consider.

Drawbacks and Disadvantages
While XFS is highly advantageous, it's not without its flaws. Some of the most notable drawbacks include:

  • Required data journaling: While data journaling is a benefit to traditional, hard disk drives (HDDs), it can actually reduce the longevity of solid-state drives (SSDs). Unfortunately, the data journaling feature cannot be disabled in XFS.
  • Disk snapshots: Because XFS relies on the volume manager for disk snapshots, support for online or live snapshots has yet to be implemented.
  • Partitioning limitations: Although XFS allows for partitions to be expanded at virtually any time, the same partitions cannot be shrunk. However, there are several workarounds for this particular issue.

For users who require a large amount of storage space and fast, efficient disk operations, XFS is one of the best options on nearly all modern Linux distros.

You may read more about the XFS in Wikipedia: XFS.
Our article Data Recovery from an XFS Disk explains how to recover files from such disks.

Data Recovery Feedback
370 feedbacks
Rating: 4.8 / 5
I really love your R-Studio product, I am doing Data Recovery as a professional, I used RS since the early versions and I loved the product, as far as I can tell, R-Studio, especially the Tech Version (but including the standard) is one of the best and excellent tools for a pro to have in the arsenal of tools in a pro DR lab, especially combining with the specialized Data Recovery hardware providers like DeepSpar, and PC3000, the rest of `wannabees` out there are waste of time, strongly recommend
I lost more than 200K files from my NAS due to a mistake. I tried 3 different recovery solutions over the 4 TB raid disks, and all of them performed ok but to be honest none of them were able to Raw recover the files and rename them with meaningful names out of the Metadata like R-TT did, then I was able to sort again my files and pictures and kind of restore all of them.

R-TT may not be the easiest or most user-friendly solution, but the algorithm used for the renaming saved me THOUSAND of hours of opening ...
Just recovered my old ext4 partition with R-Studio after trying testdisk and R-Linux without success. That partition was overwritten by another ext4 partition and I was losing my hope until I tried R-Studio demo. It detected all my files and directories again!

Bought it and 100% recommend it for anyone with a similar issue.
Genuinely tried every free program available without luck of recovering a deleted file from months ago. Thinking my file was deleted forever and lose all hope I came across this website as a recommendation.

I was reluctant as it seemed pricey compared to other programs, but damn worth every penny. It managed to even find files I thought were wiped from existence.

Kudos to r-tools, thank you!
Why make incremental backups, when there is R-Studio?

I`m an IT professional who has worked from home for over a decade. Early on in my career, I configured an HP ProLiant Server (Raid 1+0) as a workstation that I would remote into from my laptop. As technology evolved, I began to use it only for email and as a config file repository.

A short while ago, one of the drives degraded, but the HP ProLiant Server (Raid 1+0) still functioned fine on the remaining drive. I was complacent and didn`t replace the ...