How to Access RAID Disk Data Without NAS Buffalo TeraStation TS5800D Functionality

Has your NAS Buffalo TeraStation TS5800D suddenly lost its network drive and you’re unsure what to do next? Did the RAID array collapse, making your files inaccessible? Is the device throwing errors during startup? Perhaps you accidentally rebuilt the RAID array or several hard drives failed at the same time?

How to Access RAID Disk Data Without NAS Buffalo TeraStation TS5800D Functionality

Buffalo TeraStation TS5800D NAS Data Recovery in 2025

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from an TeraStation TS5800D. We’ll walk through the most common causes of failure and demonstrate proven methods to restore files from a lost or degraded RAID array.

How to Access RAID Disk Data Without NAS Buffalo TeraStation TS5800D Functionality

RAID Recovery™ 2.8
Recover data from damaged RAID arrays inaccessible from a computer.
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Why Regular Data Recovery Tools Can’t Restore Files from RAID

Conventional hard drives store user data by writing it sequentially across the disk surface, which means an entire file is typically located on a single drive. In contrast, when data is written to a RAID array, each file is split into multiple fragments. These fragments are then distributed and written in sequence across all the drives in the array. Depending on the configuration, fragment sizes can range from 2 KB to 2 MB, so every file is physically stored across several disks at once.

This approach significantly increases read and write performance — after all, writing two halves of a 1 GB file to two drives simultaneously is much faster than writing the full 1 GB to a single disk. However, this same mechanism makes file recovery far more complex.

Different RAID levels use different methods to distribute and protect data. On top of that, manufacturers like Buffalo often add their own proprietary structures and variations. As a result, data can be written to disks in many different formats, and each requires a specific approach during recovery.

Can regular data integrity checks help prevent data loss in NAS Buffalo TeraStation TS5800D devices?

Yes, regular data integrity checks can help prevent data loss in NAS Buffalo TeraStation TS5800D devices. Data integrity checks involve verifying the accuracy and consistency of data stored on the device. By regularly performing these checks, any potential issues or errors in the data can be identified and addressed before they lead to data loss.

Data integrity checks typically involve techniques such as checksum verification, which compares the calculated checksum of a file with its stored checksum to ensure data integrity. This process helps to detect and correct any data corruption or loss that may have occurred due to hardware failures, software bugs, or other issues.

Regularly scheduled data integrity checks can help identify and resolve data integrity issues early on, minimizing the risk of data loss. It is recommended to combine data integrity checks with other data protection measures such as regular backups to ensure comprehensive data protection.

How to Remove Hard Disks from Your NAS and Connect Them to a PC

Although the NAS TeraStation TS5800D can be accessed over the network, you still need to remove its hard disks and connect them directly to a Windows PC. Only then can the recovery software properly scan and analyze the drives. Follow these steps:

  1. Power off the NAS and disconnect it from the power source.

    WARNING! Before removing any drives, carefully read the device manual. Improper actions may damage both the NAS enclosure and the hard disks in the RAID array.

  2. Remove the hard disks one by one, gently sliding each drive out of its slot. Remember that hard disks are highly sensitive: any impact or drop can cause serious physical damage.

  3. Label each hard disk according to its position inside the NAS. The order of the drives is crucial for correct RAID reconstruction.

  4. Connect the drives to your computer. In this video, we explain which ports you can use to connect hard disks and what to do if your PC does not have enough free connectors.

    Go to view
    How to Order Remote Data Recovery

    How to Order Remote Data Recovery

Step-by-Step Data Recovery with Hetman RAID Recovery

Hetman Raid Recovery

This program restores data from damaged RAID arrays and is fully compatible with Buffalo TeraStation TS5800D. Each hard disk in the array contains technical metadata describing how files were written. When launched, Hetman RAID Recovery analyzes this metadata, automatically reconstructs the damaged array, and provides access to its contents. After that, you can browse the recovered disk and save your files. The program can also restore files that were accidentally deleted from the network drive.

Go to view
How to recover data from a Buffalo

How to recover data from a Buffalo

TeraStation TS5800D has 1 HDD slots, and it supports the following array types:

  • RAID 0;
  • RAID 1;
  • RAID 5;
  • RAID 6;
  • RAID 50;
  • RAID 60;
  • JBOD;

NAS supports:

  • exFAT, VFAT, FAT 12 / 16 / 32;
  • NTFS / ReFS;
  • APFS / HFS+;
  • Ext2 / 3 / 4 / ReiserFS / XFS / UFS / ZFS / Btrfs;
  • VMFS / HikvisionFS;

How to Safely Recover Data from Disk Images

This utility allows you to create a complete copy of a disk and work with the disk image instead of the physical drive. This approach helps protect your data from:

  • Overwriting during the recovery process;
  • Additional data loss caused by bad sectors;
  • User errors.

To create a disk image, follow these steps:

  1. Ensure you have enough free space to store the image. Its size will typically match the size of the original disk.

  2. In the main window, select the target disk and choose Tools - Save Disk. You can also select multiple disks if needed.

  3. When the Image Creation Wizard opens, select whether you want to save the entire disk or only a specific region. Adjust the settings and click Next.

    Hetman RAID Recovery: Image Creation Wizard
  4. Choose the directory where the image will be saved. You may select any available disk connected to your PC or upload the image via FTP.

    Hetman RAID Recovery: Choose a disk or save the image via FTP

Where Are the User’s Files Actually Stored?

The Buffalo TeraStation TS5800D network-attached storage keeps OS Linux operating system files on a separate RAID 1 (mirrored) array. Usually, all NAS systems create several volumes on every hard disk, and the first of them takes up to 2 Gb of space. This is where operating system files are stored. Other volumes are united into a RAID array where user’s data is written.

RAID Recovery Software: Detailed Comparison

Product Operating system RAID controller support Supported file systems Virtual RAID controller support Data recovery from damaged RAID File preview
Hetman RAID Recovery Windows, Linux, MacOS Yes, over 100 controllers FAT, exFAT, NTFS, ReFS, APFS, HFS+, Ext4, Ext3, Ext2, ReiserFS, Btrfs, VMFS, Hikvision, XFS, UFS, ZFS Yes Yes Yes
DiskInternals RAID Recovery Windows Yes, over 10 controllers FAT, NTFS, Ext2/3/4, HFS+ No Yes Yes
R-Studio Windows, Mac, Linux Yes, over 20 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes
UFS Explorer RAID Recovery Windows, Mac, Linux Yes, over 100 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes
EaseUS Data Recovery Windows Yes, over 20 controllers FAT, NTFS, Ext2/3/4, HFS+ No Yes Yes
ReclaiMe Free RAID Recovery Windows Yes, over 100 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes

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Comments (3)

  • Hetman Software: Data Recovery
    Hetman Software: Data Recovery 9.08.2022 12:31 #
    If you want to ask a question about data recovery, from NAS TeraStation TS5800D, feel free to leave a comment!
  • Rick Cumberbatch
    Rick Cumberbatch 29.08.2023 17:54 #
    Can data recovery from a NAS Buffalo TeraStation TS5800D device be performed if there are issues with the motherboard or system board?
    • Hetman Software
      Hetman Software 29.08.2023 18:59 #

      Data recovery from a NAS Buffalo TeraStation TS5800D device can be challenging if there are issues with the motherboard or system board. In such cases, it is recommended to contact a professional data recovery service provider who specializes in NAS devices. These experts have the necessary tools and expertise to recover data from faulty NAS devices, including those with motherboard or system board issues. However, it is important to note that the success of data recovery depends on the extent of the damage and the specific circumstances of the failure.

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Vladimir Artiukh

Author: Vladimir Artiukh, Technical Writer

Vladimir Artiukh is a technical writer for Hetman Software, as well as the voice and face of their English-speaking YouTube channel, Hetman Software: Data Recovery for Windows. He handles tutorials, how-tos, and detailed reviews on how the company’s tools work with all kinds of data storage devices.

Oleg Afonin

Editor: Oleg Afonin, Technical Writer

Oleg Afonin is an expert in mobile forensics, data recovery and computer systems. He often attends large data security conferences, and writes several blogs for such resources as xaker.ru, Elcomsoft and Habr. In addition to his online activities, Oleg’s articles are also published in professional magazines. Also, Oleg Afonin is the co-author of a well-known book, Mobile Forensics - Advanced Investigative Strategies.

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Questions and answers

  • What are the key features and capabilities of the NAS Buffalo TeraStation TS5800D that make it suitable for a surveillance system?

    The NAS Buffalo TeraStation TS5800D has several key features and capabilities that make it suitable for a surveillance system:

    1. High Storage Capacity: The TS5800D comes with multiple storage options ranging from 16TB to 64TB, allowing for ample storage space to store surveillance footage and data.
    2. RAID Support: It supports various RAID configurations (0, 1, 5, 6, 10, 50, and 60), which provide data redundancy and protection against drive failures. This is crucial for ensuring the integrity and availability of surveillance footage.
    3. High Performance: The TS5800D is equipped with a powerful Intel Atom quad-core processor and 8GB of RAM, enabling it to handle multiple streams of high-definition surveillance footage without any lag or performance issues.
    4. Scalability: It supports up to 8 hard drives, allowing for easy expansion of storage capacity as surveillance needs grow over time.
    5. Advanced Data Management: The NAS comes with advanced data management features such as snapshotting, replication, and backup options. These features ensure the safety and integrity of surveillance data by allowing for easy backups and recovery.
    6. Surveillance-specific Applications: The TS5800D is compatible with various surveillance applications such as Milestone Arcus, providing seamless integration with surveillance cameras and software.
    7. Remote Access and Monitoring: It supports remote access and monitoring, allowing users to access surveillance footage and manage the system from anywhere using a web browser or mobile app.
    8. Redundant Power Supply: The NAS features a redundant power supply, ensuring uninterrupted operation and minimizing the risk of downtime due to power failures.
    9. Security Features: The TS5800D offers advanced security features such as AES 256-bit encryption, secure boot, and antivirus support, ensuring the confidentiality and integrity of surveillance data.

    Overall, the NAS Buffalo TeraStation TS5800D combines high storage capacity, performance, scalability, and advanced data management features, making it a suitable choice for a surveillance system that requires reliable storage, data protection, and remote access capabilities.

  • How does the NAS Buffalo TeraStation TS5800D ensure data security and reliability for a surveillance system?

    The NAS Buffalo TeraStation TS5800D ensures data security and reliability for a surveillance system through several features:

    1. RAID Technology: The TS5800D supports various RAID levels (0, 1, 5, 6, 10, 50, and 60), which provide data redundancy and protection against drive failures. RAID technology ensures that even if one or more drives fail, the system can continue to operate without data loss.
    2. Hot-Swappable Drives: The TS5800D allows for hot-swapping of drives, meaning that failed drives can be replaced without shutting down the system. This feature minimizes downtime and ensures continuous operation of the surveillance system.
    3. Data Encryption: The NAS supports AES 256-bit encryption, which provides robust security for data stored on the drives. Encryption prevents unauthorized access to sensitive surveillance footage and ensures that data remains secure even if the drives are stolen or compromised.
    4. User Access Control: The TS5800D offers comprehensive user access control mechanisms, allowing administrators to create multiple user accounts with different levels of access privileges. This ensures that only authorized personnel can access and manage the surveillance data, reducing the risk of unauthorized access or accidental deletion.
    5. Data Replication and Backup: The NAS supports data replication to another TeraStation or external storage, ensuring that surveillance data is backed up in real-time. This redundancy protects against data loss in case of hardware failure or other unforeseen events.
    6. Surveillance-Specific Features: The TS5800D is designed specifically for surveillance applications and includes features like built-in surveillance management software, compatibility with popular IP camera models, and support for ONVIF standards. These features enhance the integration and compatibility of the NAS with surveillance systems, ensuring seamless operation and data reliability.

    Overall, the NAS Buffalo TeraStation TS5800D combines various data security and reliability features to ensure the integrity and availability of surveillance data, providing peace of mind for users.

  • Can the NAS Buffalo TeraStation TS5800D be easily integrated with existing surveillance cameras and software? What are the compatibility requirements and setup process?

    The NAS Buffalo TeraStation TS5800D can be integrated with existing surveillance cameras and software, but the compatibility requirements and setup process may vary depending on the specific cameras and software being used.

    Compatibility Requirements:

    1. Surveillance Cameras: The TS5800D should be compatible with most IP cameras that support network storage. It is recommended to check the camera's specifications or consult with Buffalo support to ensure compatibility.
    2. Software: The TS5800D supports various surveillance software applications, including Buffalo Surveillance Server, Milestone Arcus, and more. Check the NAS documentation to see the list of supported software.

    Setup Process:

    1. Connect Cameras: Connect your surveillance cameras to the same network as the TS5800D. Ensure that the cameras are configured to use network storage.
    2. Install Surveillance Software: Install the compatible surveillance software on your computer or directly on the TS5800D (if supported). Follow the software's installation instructions.
    3. Configure Software: Access the surveillance software's configuration interface and set up the cameras. This typically involves adding the camera's IP address, login credentials, and specifying the TS5800D as the storage location.
    4. Configure TS5800D: If required, configure the TS5800D to enable network storage and set up appropriate user permissions for accessing the surveillance footage.
    5. Test Integration: Verify that the surveillance software can access and record footage to the TS5800D. Test various features and functionalities to ensure proper integration.

    It is important to note that the specific setup process may differ based on the surveillance software being used. It is recommended to consult the documentation and support resources provided by Buffalo and the surveillance software manufacturer for detailed instructions and troubleshooting assistance.