Btrfs, short for "B-tree file system," is an advanced and open-source file system designed to overcome limitations in traditional file systems when dealing with large amounts of data and providing advanced data management features. It supports snapshots, cloning, online defragmentation, and automatic error detection and repair. Aimed at offering more reliable data storage and backup solutions, Btrfs also strives to enhance performance and scalability. Primarily used in the Linux operating system, it is also compatible with other open-source projects.

Btrfs, short for B-Tree file system, is designed to address common issues in enterprise storage systems, such as fault tolerance, complex data management, and protection. As a modern file system developed by various parties, it is now supported by multiple Synology NAS models.

Advantages of Btrfs:

Stability:

Btrfs has seen many improvements over the years. It is now mature enough for most simple use cases, even with different RAID levels. The latest versions of Btrfs can even fix common errors in Btrfs Raid-5 file systems.

Improving data availability:

In any storage system, it is crucial to maintain the integrity of metadata, which contains important information such as the folder structure, filenames, permissions, and the location of each file. During a write operation, Btrfs stores two copies of the metadata on the volume, which aids in data recovery in case of hard drive failure or bad sectors.

Data protection and snapshots:

The snapshot feature of the Btrfs file system allows you to replicate a shared folder in real time. Thus, in case important files get deleted or lost, you can easily revert the data to the state it was in when the snapshot was taken, facilitating easy recovery of lost data.

Efficiently saves hard drive storage space:

With Btrfs, Drive's file versions and history don't require double the storage space. You can keep your file history with Drive without worrying about running out of room.

Download the Btrfs File Recovery Software for Free

Btrfs file system boasts numerous great features, but it can be frustrating when files stored in it get deleted or lost. If you find yourself in such an unfortunate situation, how can you quickly recover deleted data from the Btrfs file system? Actually, there's an effective way. With the help of user-friendly NAS data recovery software provided by tools, you can effortlessly perform Btrfs data recovery.

The professional data recovery tool, Data Recovery Wizard Pro, not only helps recover corrupted files, photos, and hard drives, but it also performs impressively in Btrfs data recovery.

Highlights of the Tools Data Recovery Software:

Supported operating systems/file systems:

    • Operating System: Windows 11/10 64-bit
    • File System: Btrfs/EXT4

How to Recover Data from a Btrfs RAID Partition Step by Step Step 1: Preparation Before starting the data recovery process, ensure that you have backed up all essential files and understand your RAID configuration. The Btrfs file system supports various RAID modes like RAID 0, RAID 1, RAID 5, RAID 6, and so on. Identifying your RAID setup is crucial. Step 2: Connect the Hard Drives Connect the hard drives containing the Btrfs RAID partition to another computer or a spare system with enough space to save the recovered data. Make sure the drives are correctly identified and mounted. Step 3: Check RAID Status Use the `btrfs filesystem show` command to check the status of the Btrfs RAID array. This will display information about the RAID, including member devices, size, and status. For example: ``` $ sudo btrfs filesystem show /dev/sda /dev/sdb Label: none uuid: 12345678-1234-1234-1234-123456789abc Total devices 2 FS bytes used 100.00GiB raid1 0 123.00MiB /dev/sda raid1 0 123.00MiB /dev/sdb [RAID1] 123.00MiB total, 100.00GiB used, 100.00GiB avail ``` Step 4: Mount the RAID Partition Mount the RAID partition using the `btrfs mount` command. If the system fails to auto-detect the RAID configuration, you may need to specify the devices manually. For instance: ``` $ sudo mkdir /mnt/raid $ sudo btrfs mount -o degraded /dev/sda /mnt/raid ``` Step 5: Locate Lost Data Use the `btrfs file tree` or `btrfs rescue lost+found` commands to search for missing files or directories. This will help identify which files can be recovered. ``` $ sudo btrfs file tree /mnt/raid $ sudo btrfs rescue lost+found /mnt/raid ``` Step 6: Recover Data Once you find the files to restore, use the `cp` or `rsync` command to copy them to a secure location. Ensure the target location has enough space. ``` $ sudo cp /mnt/raid/lost+found/missing_file.txt /safe/destination/ $ sudo rsync -av /mnt/raid/important_directory /safe/destination/ ``` Step 7: Verify the Recovery After the recovery, check the files in the target location to confirm the data integrity. If everything is fine, unmount the RAID partition and shut down the computer. ``` $ sudo umount /mnt/raid ``` Please note that these steps serve as general guidance, and your specific system configuration might require variations. If you encounter difficulties, seeking assistance from a professional data recovery service is advisable.

If you have already downloaded the tools Data Recovery Wizard on your computer, it will be very easy for you to recover lost data from Btrfs file system. This powerful tool won't let you down when you try to recover deleted Btrfs files by yourself. Learn how to use this mighty software with the steps below:

Step 1: Select the NAS server and start the recovery

Download and install the tools Data Recovery Wizard on your 64-bit Windows 11/10 computer. After launching the software, choose "NAS Recovery." All NAS servers will be listed automatically. Select the target NAS device and click "Scan."

Select a NAS server and start the recovery

Step 2: Enable SSH on the NAS server.

Go to Control Panel > Terminal and SNMP, and enable SSH service. Note down the port used for remote access. Launch the tools Data Recovery Wizard and click Next.

Enable SSH service on the NAS server

Step 3: Connect to the NAS server remotely.

This program will automatically detect your IP address and port. You just need to enter your username and password. If the IP address or port is incorrect, you can correct it manually. Then click "Connect Now".

Connect to NAS Server Remotely

Step 4: Recover Lost/Deleted NAS Data

Then, the tool will connect to your NAS and start scanning the NAS device. Once the scan is completed, you will see all the deleted, lost, or existing files on your NAS server.

You can use the “Filter” option or click on “Search for files or folders” to look for the missing files on the hard drive. Select the NAS files that got lost from the server and click on “Recover” to save them to another location.

Click the "Recover" button to restore the deleted NAS files.

Recover Lost/Deleted NAS Data

How to Use Data Recovery Service to Rescue Btrfs RAID

Another effective way to recover Btrfs RAID data is by using the professional Data Recovery Service from tools. After a free diagnosis, it offers the following services. Contact the experts for assistance.

Consult with Tools Data Recovery experts for one-on-one manual recovery services. After a free diagnosis, we offer the following services. Our experienced engineers have the expertise to repair damaged RAID structures and recover data from all RAID levels.

  • Data recovery from all RAID levels, including RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, etc.
  • Data recovery from enterprise-level RAID systems like QNAP, Synology, WD, Buffalo, etc.
  • Recovering RAID data lost due to any issue.
  • Repairing disks turned into GPT protected partitions.
  • Remote RAID data recovery without the need for shipping.

Frequently Asked Questions about Btrfs RAID Recovery

Having a deeper understanding of the Btrfs file system will help you troubleshoot Btrfs problems more effectively. The information on Btrfs RAID recovery below will give you more insight into handling Btrfs issues.

1. What is Ext4?

EXT4 stands for the fourth-generation Extended File System, which is a standard hierarchical file system featuring a boot sector, partition table, and uses inode structures to describe files and objects. It is the successor to the ext3 file system. EXT4 incorporates scalability and reliability enhancements to support larger file systems, accommodating increasing disk capacities and the demands of modern features.

2. What is the difference between Btrfs and Ext4?

While both Btrfs and Ext4 are popular file systems, there are many differences between them.

Logging or copy-on-write:

    - Btrfs: Copy-on-Write File System - Ext4: Journaling File System

Support for multiple devices

    - Btrfs: Has built-in support for RAID across multiple devices - Ext4: Does not have built-in support for multiple devices

【File System-Level Support】

    - Btrfs: Supports deduplication and compression at the file system level - Ext4: Does not support deduplication or compression at the file system level

Data integrity:

    - Btrfs: Ensures data integrity with CRC32C checksums - Ext4: Does not guarantee data integrity

Snapshot:

    - Btrfs: Supports read-only and writable snapshots of files. - Ext4: Does not support snapshotting of the file system.

3. Where are Btrfs snapshots stored?

Each snapshot will contain an empty directory for the snapshot. The snapshots are stored on the same disk as the subvolume. You can find them in /media/backups/current.

4. How do I restore a Btrfs snapshot?

Step 1: Boot to a rescue medium and mount the Btrfs pool

Step 2. Remove or move the unwanted volumes

The date of the snapshot can be found within the "snapshot-number"/"info." XML if needed.

How to recover deleted files from a Btrfs RAID partition?

In the past, it could be quite challenging to recover deleted files from a Btrfs partition. However, with the help of tools NAS Data Recovery software, you can now easily restore deleted files from a Btrfs partition anytime to retrieve crucial data. To start the process, launch the tools Data Recovery Wizard and select "NAS Recovery." This reliable software offers professional services to assist you in retrieving lost data.

Conclusions

Being a popular file system used by many in various scenarios, Btrfs is powerful and capable of handling vast amounts of data and files. However, the loss of data stored on it can be frustrating. Locating precisely the deleted or lost data within a large database is a challenge in itself, let alone restoring it.

No need to worry! Whether data and files in Btrfs are accidentally deleted or lost due to other reasons, you can easily recover them with the help of a data recovery tool. The latest version even features NAS Data Recovery, which will be greatly beneficial when you try to address your Btrfs file recovery issue.