Step-by-Step Guide to Recovering RAID Array Data from NAS Buffalo TeraStation WS-6V6.0TL/R5

Has your NAS Buffalo TeraStation WS-6V6.0TL/R5 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?

Step-by-Step Guide to Recovering RAID Array Data from NAS Buffalo TeraStation WS-6V6.0TL/R5

Buffalo TeraStation WS-6V6.0TL/R5 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 WS-6V6.0TL/R5. We’ll walk through the most common causes of failure and demonstrate proven methods to restore files from a lost or degraded RAID array.

Step-by-Step Guide to Recovering RAID Array Data from NAS Buffalo TeraStation WS-6V6.0TL/R5

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 elevation of privileges or compromised user accounts lead to data loss or unauthorized access on NAS Buffalo TeraStation WS-6V6.0TL/R5 devices?

Yes, elevation of privileges or compromised user accounts can potentially lead to data loss or unauthorized access on NAS Buffalo TeraStation WS-6V6.0TL/R5 devices. If an attacker gains elevated privileges or compromises a user account with administrative access, they may be able to manipulate or delete data, modify settings, or gain unauthorized access to sensitive information stored on the device. It is important to ensure proper security measures, such as strong passwords, regular firmware updates, and access controls, to minimize the risk of such incidents.

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

Although the NAS TeraStation WS-6V6.0TL/R5 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 WS-6V6.0TL/R5. 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 WS-6V6.0TL/R5 has 4 HDD slots, and it supports the following array types:

  • RAID 0;
  • RAID 1;
  • RAID 5;
  • RAID 6;
  • 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 WS-6V6.0TL/R5 network-attached storage keeps Windows Storage Server 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 WS-6V6.0TL/R5, feel free to leave a comment!
  • Lincoln Exton
    Lincoln Exton 31.08.2023 17:53 #
    Can data recovery from a NAS Buffalo TeraStation WS-6V6.0TL/R5 device be done if the network interface is not functioning?
    • Hetman Software
      Hetman Software 31.08.2023 18:00 #

      Yes, data recovery from a NAS Buffalo TeraStation WS-6V6.0TL/R5 device can still be possible even if the network interface is not functioning. The network interface is responsible for connecting the device to the network, but the data is usually stored on the hard drives within the NAS device.

      To recover the data, you can remove the hard drives from the Buffalo TeraStation and connect them to a computer directly using a SATA to USB adapter or by installing them internally. Once connected, you can use data recovery software to scan and recover the files from the hard drives.

      It is important to note that if the drives are in a RAID configuration, the recovery process might be more complex as the data is distributed across multiple drives. In such cases, it is recommended to seek professional data recovery services to ensure the best chance of successful recovery.

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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 recommended methods or software for streaming audio files to a NAS Buffalo TeraStation WS-6V6.0TL/R5?

    There are several methods and software options available for streaming audio files to a NAS Buffalo TeraStation WS-6V6.0TL/R5. Here are a few recommended options:

    1. DLNA Server: The TeraStation WS-6V6.0TL/R5 supports DLNA (Digital Living Network Alliance) server functionality. You can use popular DLNA server software like Plex, Serviio, or Universal Media Server to stream audio files to your NAS. These servers will scan your audio files and make them accessible for streaming on DLNA-compatible devices.
    2. Buffalo NAS Navigator: Buffalo provides its own software called Buffalo NAS Navigator, which allows you to access and manage your TeraStation NAS. It also includes a built-in media server feature that can stream audio files directly to DLNA-enabled devices.
    3. iTunes Server: If you use iTunes to manage your audio library, you can enable the iTunes server feature on your TeraStation WS-6V6.0TL/R5. This will allow you to stream your iTunes library to any device running iTunes or compatible media players.
    4. Web-based streaming: You can also set up a web-based streaming solution using software like Ampache or Subsonic. These applications allow you to access and stream your audio files through a web interface, making them accessible from any device with a web browser.

    It's important to note that the availability and compatibility of these options may vary based on the specific firmware version of your TeraStation WS-6V6.0TL/R5. Make sure to check the Buffalo support website or user manual for the most up-to-date information and instructions.

  • How can I ensure smooth and uninterrupted streaming of audio files from the NAS Buffalo TeraStation WS-6V6.0TL/R5 to multiple devices simultaneously?

    To ensure smooth and uninterrupted streaming of audio files from the NAS Buffalo TeraStation WS-6V6.0TL/R5 to multiple devices simultaneously, you can follow these steps:

    1. Check Network Connectivity: Make sure that all devices, including the NAS and the streaming devices, are connected to a stable and high-speed network. Use Ethernet connections instead of Wi-Fi whenever possible for better performance.
    2. Network Bandwidth: Ensure that your network has enough bandwidth to handle multiple simultaneous streams. If you have a slow internet connection, consider upgrading to a higher-speed plan.
    3. Upgrade NAS Firmware: Check if there are any firmware updates available for your Buffalo TeraStation NAS. Keeping the firmware up to date can fix bugs and improve performance.
    4. Optimize NAS Settings: Configure the NAS settings for optimal performance. This may include enabling Jumbo Frames, adjusting network settings like MTU size, and enabling any streaming-specific features provided by the NAS.
    5. Enable DLNA: If your NAS supports DLNA (Digital Living Network Alliance), enable this feature. DLNA allows for easier streaming and sharing of media files across multiple devices.
    6. Use a Media Server: Install a dedicated media server software on your NAS, such as Plex or Twonky, which can transcode and stream media files to multiple devices simultaneously. These servers often have built-in optimization features for smooth streaming.
    7. Check NAS Performance: Monitor the NAS performance while streaming to ensure it is not overloaded. Check CPU and memory usage, and if necessary, consider upgrading the NAS hardware to handle multiple streams.
    8. Use Quality Audio Formats: Ensure that your audio files are in a format that is compatible with most devices and can be easily streamed without buffering. Common formats like MP3 or AAC are recommended.
    9. Reduce Network Interference: Minimize network interference by placing the NAS and streaming devices away from other electronic devices that may cause interference, such as microwaves or cordless phones.
    10. Test and Troubleshoot: Test the streaming on multiple devices simultaneously to ensure smooth playback. If you encounter any issues, troubleshoot by checking network settings, updating firmware, or consulting the NAS manufacturer's support resources.

    By following these steps, you can optimize the streaming experience from your Buffalo TeraStation NAS to multiple devices simultaneously.

  • Are there any specific network or configuration requirements to optimize the streaming performance of audio files to the NAS Buffalo TeraStation WS-6V6.0TL/R5?

    To optimize the streaming performance of audio files to the NAS Buffalo TeraStation WS-6V6.0TL/R5, there are a few network and configuration requirements you can consider:

    1. Network Speed: Ensure that your network provides sufficient bandwidth to handle the streaming of audio files. A Gigabit Ethernet connection is recommended for faster data transfer rates.
    2. Wired Connection: Whenever possible, use a wired Ethernet connection instead of a wireless connection. Wired connections tend to be more stable and offer better performance for streaming.
    3. Router Quality: Make sure you have a high-quality router that can handle the network traffic efficiently. A router with Quality of Service (QoS) features can prioritize streaming traffic, ensuring smooth playback.
    4. Network Switch: If you have multiple devices connected to your network, consider using a network switch to improve network performance. This can help distribute the network load and prevent congestion.
    5. Jumbo Frames: Enabling jumbo frames on your NAS and network devices may improve performance. Jumbo frames allow for larger data packets to be transferred, reducing overhead and increasing efficiency.
    6. RAID Configuration: Setting up your TeraStation in a RAID configuration can improve performance by distributing data across multiple drives, allowing for faster access and read/write speeds.
    7. Network Protocol: Choosing the appropriate network protocol can also impact performance. For streaming audio files, using protocols like NFS (Network File System) or SMB (Server Message Block) can be more efficient.
    8. Buffering: Configure your media player or streaming software to buffer an adequate amount of data before playback. This can help prevent interruptions due to network latency or fluctuations.
    9. Firmware Updates: Keep your TeraStation's firmware up to date to ensure you have the latest performance optimizations and bug fixes.

    It's worth noting that the performance of your streaming setup can also depend on factors like the size and format of the audio files, the media player software, and the client device used for playback.