Selecting Data Recovery Software for Recovering NAS Buffalo TeraStation TS6400RN3204 Data: Essential Guide

Has your NAS Buffalo TeraStation TS6400RN3204 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?

Selecting Data Recovery Software for Recovering NAS Buffalo TeraStation TS6400RN3204 Data: Essential Guide

Buffalo TeraStation TS6400RN3204 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 TS6400RN3204. We’ll walk through the most common causes of failure and demonstrate proven methods to restore files from a lost or degraded RAID array.

Selecting Data Recovery Software for Recovering NAS Buffalo TeraStation TS6400RN3204 Data: Essential Guide

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.

How can regular disk health monitoring and analysis help in preventing potential data loss on NAS Buffalo TeraStation TS6400RN3204 devices?

Regular disk health monitoring and analysis can help in preventing potential data loss on NAS Buffalo TeraStation TS6400RN3204 devices in the following ways:

  1. Early detection of disk failures: Disk health monitoring tools can regularly check the SMART (Self-Monitoring, Analysis, and Reporting Technology) status of the hard drives in the NAS device. This allows for the early detection of any potential issues or signs of impending disk failure. By identifying these problems early on, you can take preventive measures such as replacing the failing disk before it completely fails and causes data loss.
  2. Predictive analysis: Advanced disk health monitoring tools can analyze historical data and provide predictive analysis on the health of the disks. By studying the trends and patterns of disk behavior, these tools can estimate the remaining lifespan of the disks. This information can help you proactively replace disks that are likely to fail soon, reducing the risk of data loss.
  3. RAID array monitoring: NAS devices like Buffalo TeraStation TS6400RN3204 often use RAID (Redundant Array of Independent Disks) technology for data redundancy and protection. Disk health monitoring tools can monitor the RAID array and alert you if there are any issues with the array, such as a degraded or failed disk. Promptly addressing these issues can prevent data loss and ensure the integrity of your data.
  4. Temperature monitoring: Overheating can be a common cause of disk failures. Disk health monitoring tools can monitor the temperature of the disks and alert you if they are running too hot. By addressing any cooling issues or ensuring proper ventilation, you can prevent overheating-related disk failures and potential data loss.
  5. Proactive maintenance and backups: By regularly monitoring the disk health and analyzing the data, you can schedule proactive maintenance tasks such as disk defragmentation or firmware updates. Additionally, it reminds you to regularly back up your data to external devices or cloud storage. Having up-to-date backups is crucial in case of any unforeseen disk failures or data loss incidents.

Overall, regular disk health monitoring and analysis provide valuable insights into the status of the disks in your NAS device, allowing you to take proactive measures to prevent potential data loss and ensure the reliability and availability of your data.

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

Although the NAS TeraStation TS6400RN3204 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 TS6400RN3204. 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 TS6400RN3204 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 TS6400RN3204 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 TS6400RN3204, feel free to leave a comment!
  • Chance Abbs
    Chance Abbs 2.09.2023 11:46 #
    Can data recovery from a NAS Buffalo TeraStation TS6400RN3204 device be done if the device is showing signs of network congestion or bandwidth issues?
    • Hetman Software
      Hetman Software 2.09.2023 12:59 #

      Data recovery from a NAS Buffalo TeraStation TS6400RN3204 device can still be possible even if the device is experiencing network congestion or bandwidth issues. However, the success of the recovery process may depend on the extent of the congestion and the specific issues causing it.

      Here are a few things you can try to recover data from a congested NAS device:

      1. Troubleshoot network issues: Identify and resolve any network issues causing congestion or bandwidth problems. This may involve checking network cables, router settings, or adjusting network configurations.
      2. Optimize network settings: Configure the NAS device and the network to prioritize data transfer and reduce congestion. This may include adjusting Quality of Service (QoS) settings, enabling jumbo frames, or limiting bandwidth usage by other devices on the network.
      3. Use a wired connection: If you are using a wireless connection for the NAS device, try connecting it directly to the router or network switch using an Ethernet cable. Wired connections generally provide more stable and reliable data transfer.
      4. Transfer data in smaller batches: Instead of attempting to recover all data at once, try transferring smaller batches of files. This can help reduce the strain on the network and improve the chances of successful data recovery.
      5. Seek professional assistance: If the above steps do not resolve the congestion issues or if the data recovery process becomes too complex, it may be advisable to seek professional assistance from a data recovery service provider. They can help diagnose and resolve network issues and perform data recovery in a controlled environment.

      Remember to always consult the manufacturer's documentation or seek professional advice before attempting any data recovery procedures to avoid further damage or data loss.

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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 measures implemented in the NAS Buffalo TeraStation TS6400RN3204 to ensure data security?

    The NAS Buffalo TeraStation TS6400RN3204 includes several key features and measures to ensure data security. These include:

    1. RAID Protection: The TeraStation TS6400RN3204 supports RAID levels 0, 1, 5, 6, 10, and JBOD. RAID provides data redundancy and protection against drive failures.
    2. AES 256-bit Encryption: The NAS supports AES 256-bit encryption, which ensures that data stored on the device is securely encrypted and protected from unauthorized access.
    3. Active Directory Integration: The TeraStation TS6400RN3204 can be integrated with an existing Active Directory environment, allowing for centralized user and group management and enhancing security by enforcing access controls.
    4. Built-in Anti-virus: The NAS includes a built-in anti-virus feature that scans files for malware and viruses, helping to prevent the spread of malicious software within the network.
    5. Scheduled Backup and Replication: The TeraStation TS6400RN3204 supports scheduled backups and replication to external devices or remote locations, ensuring that data is regularly backed up and protected against data loss.
    6. User and Group Management: The NAS allows for the creation of multiple users and groups with different access privileges, enabling administrators to control who can access and modify data on the device.
    7. IP Address Filter: The TeraStation TS6400RN3204 includes an IP address filter that allows administrators to restrict access to the NAS based on specific IP addresses or IP ranges, enhancing security by limiting access to authorized devices.
    8. Secure Remote Access: The NAS supports secure remote access protocols such as HTTPS and FTPS, allowing users to access their data securely from outside the local network.
    9. Data Encryption and Secure Erase: The TeraStation TS6400RN3204 supports data encryption during transmission and secure erase functionality, ensuring that data is securely transmitted and can be securely erased when no longer needed.

    Overall, the NAS Buffalo TeraStation TS6400RN3204 incorporates a range of features and measures to ensure data security, including RAID protection, encryption, anti-virus scanning, access controls, and secure remote access capabilities.

  • Can the NAS Buffalo TeraStation TS6400RN3204 support encryption for data at rest and data in transit? How does it ensure the confidentiality and integrity of the stored data?

    Yes, the NAS Buffalo TeraStation TS6400RN3204 supports encryption for both data at rest and data in transit. It ensures the confidentiality and integrity of the stored data through various mechanisms:

    1. Data at Rest Encryption: The TeraStation TS6400RN3204 supports AES 256-bit encryption for data at rest. This means that all the data stored on the NAS is encrypted using a strong encryption algorithm, making it unreadable without the encryption key.
    2. Data in Transit Encryption: The NAS supports various protocols such as SSL/TLS and IPsec VPN for secure data transmission over the network. These protocols encrypt the data while it is being transferred between the NAS and other devices, ensuring that it cannot be intercepted or tampered with during transit.
    3. User Access Control: The TeraStation TS6400RN3204 allows you to set up user accounts and permissions, ensuring that only authorized users have access to the stored data. This helps in maintaining the confidentiality and integrity of the data by preventing unauthorized access.
    4. RAID Technology: The NAS supports various RAID configurations, such as RAID 1, 5, 6, and 10, which provide data redundancy and protection against data loss. In case of a disk failure, the RAID system ensures that the data remains intact and accessible, maintaining data integrity.
    5. Firmware Updates: Buffalo regularly releases firmware updates for their NAS devices, which include security patches and enhancements. Keeping the firmware up to date ensures that any vulnerabilities or security issues are addressed, enhancing the overall security and integrity of the stored data.

    By combining these features, the Buffalo TeraStation TS6400RN3204 ensures the confidentiality and integrity of the stored data, both at rest and in transit.

  • What backup and disaster recovery options are available on the NAS Buffalo TeraStation TS6400RN3204 to protect against data loss and ensure business continuity?

    The NAS Buffalo TeraStation TS6400RN3204 offers several backup and disaster recovery options to protect against data loss and ensure business continuity. Some of these options include:

    1. RAID Configuration: The TeraStation TS6400RN3204 supports various RAID configurations, such as RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10. These configurations provide redundancy and data protection by distributing data across multiple drives.
    2. Replication: The TeraStation TS6400RN3204 supports replication, allowing you to create a copy of your data on another TeraStation device. This ensures that if one device fails, you can quickly restore your data from the replicated copy.
    3. Snapshot: The TeraStation TS6400RN3204 supports snapshot technology, which takes point-in-time copies of your data. Snapshots allow you to recover files or folders from a specific point in time, even if they have been modified or deleted.
    4. Cloud Backup: The TeraStation TS6400RN3204 offers integration with various cloud backup services, such as Amazon S3, Dropbox, and Microsoft Azure. You can configure scheduled backups to these cloud services to store your data off-site and protect against disasters that may affect your physical location.
    5. USB Backup: The TeraStation TS6400RN3204 has USB ports that allow you to connect external hard drives or USB flash drives for backup purposes. You can schedule automatic backups or manually initiate backups to these external devices.
    6. Active Directory Integration: The TeraStation TS6400RN3204 supports integration with Active Directory, allowing you to manage user access and permissions centrally. This ensures that only authorized users have access to your data and helps prevent data loss due to unauthorized access or accidental deletion.
    7. Hot Spare: The TeraStation TS6400RN3204 supports hot spare functionality, where an extra hard drive is kept in the NAS as a standby. If a drive fails, the hot spare automatically replaces it, minimizing downtime and ensuring data availability.

    These backup and disaster recovery options provide a comprehensive solution to protect your data and ensure business continuity in case of any unforeseen events or data loss incidents.