How to recover data from Buffalo TeraStation TS-RH4.0TGL/R5 NAS

Is your network drive gone, and you are wondering what to do? Has a RAID system crashed, and your files are no longer accessible? Does your device display an error while booting? Have you accidentally rebuilt your RAID system? Are several hard disks out of order?

How to recover data from NAS Buffalo TeraStation TS-RH4.0TGL/R5

Buffalo TeraStation TS-RH4.0TGL/R5 NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from TeraStation TS-RH4.0TGL/R5.

How to recover data from NAS Buffalo TeraStation TS-RH4.0TGL/R5

Recover data from damaged RAID arrays inaccessible from a computer.

Why can’t ordinary software tools restore files from RAID?

Conventional hard disks keep user’s data by writing it to their surface in a consecutive way, and this is how an entire file is stored on a single hard disk. However, when data is written to a RAID system, a file is divided into several parts. Then these parts are written consecutively to all hard disks within such array. The size of such parts may range from 2 KB to 2 MB, so each file is stored on several hard disks at the same time.

Such approach helps to speed up read and write operations, and it is evident that saving two parts of a file having the size of 1 GB to two hard disks simultaneously is much faster than saving the same 1 GB of data to one hard disk. However, this peculiarity makes file recovery more complicated.

Various RAID levels store information in different ways. Additionally, manufacturers like Buffalo also introduce some modifications to this process, and that is why data can be written to hard disk in a wide variety of ways.

How can the number of drives in a NAS Buffalo TeraStation TS-RH4.0TGL/R5 device's RAID array impact data recovery and potential loss?

The number of drives in a NAS Buffalo TeraStation TS-RH4.0TGL/R5 device's RAID array can have a significant impact on data recovery and potential loss.

  1. Redundancy: RAID arrays are designed to provide redundancy and fault tolerance. The more drives in the array, the higher the level of redundancy. In the case of the TS-RH4.0TGL/R5, it uses RAID 5 configuration, which requires a minimum of three drives. With three drives, the array can tolerate the failure of one drive without losing any data. If a fourth drive is added, it further improves redundancy and can tolerate the failure of two drives.
  2. Data Recovery: In the event of a drive failure, the NAS device can rebuild the data from the remaining drives using parity information. The larger the number of drives in the array, the longer the rebuild process will take. During this time, the array is in a vulnerable state, as another drive failure can result in data loss. So, having a larger number of drives increases the risk of data loss during the rebuild process.
  3. Potential Loss: If multiple drives fail simultaneously or within a short period, the data in the RAID array can be lost. In a RAID 5 configuration with three drives, the failure of two drives would result in complete data loss. Adding more drives to the array reduces the risk of simultaneous failures, but it does not eliminate it entirely.

It is important to note that RAID is not a substitute for regular backups. While RAID provides some level of protection against drive failures, it cannot protect against other forms of data loss such as accidental deletion, file corruption, or catastrophic events. Regular backups should be implemented to ensure data can be recovered in case of any unforeseen circumstances.

How to take hard disks out of the NAS and connect them to a PC?

Although NAS TeraStation TS-RH4.0TGL/R5 can be accessed over the network, you still need to take the hard disks out of the storage device and connect them to a Windows computer. Only in this case will the software be able to scan them properly. Here is what you should do:

  1. Turn off the storage and disconnect it from the power supply.

    WARNING! Before you start taking hard disks out of your NAS device, read the manual carefully. Incorrect actions may damage your network-attached storage and/or the hard disks within the RAID system.

  2. Take the hard disks out of the NAS one by one, carefully removing them from their slots. Remember that the disks are extremely vulnerable: hitting or dropping them may result in serious physical damage.

  3. Make sure to mark each hard disk in accordance with how they were installed inside the NAS.

  4. Remove the hard disks and connect them to the computer. In this video, we have explored what ports are used to connect hard disks, and what to do if there are not enough ports or connectors.

    Go to view
    How to Order Remote Data Recovery

    How to Order Remote Data Recovery

Restoring data with Hetman RAID Recovery

Hetman Raid Recovery

This program recovers data from damaged RAID arrays and is fully compatible with Buffalo TeraStation TS-RH4.0TGL/R5. The hard disks that make up the RAID contain technical information about the algorithm used to save files. When launched, Hetman RAID Recovery reads this information and puts the damaged array together. Then you can open the disk and save your files. Also, you can recover the files accidentally deleted from the network drive.

Go to view
How to recover data from a Buffalo

How to recover data from a Buffalo

TeraStation TS-RH4.0TGL/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;

Safe recovery from disk images

This utility lets you save an entire copy of the disk to file and then work with this image instead of the actual disk. Such feature helps to protect data on the disk from:

  • Overwriting during the recovery process;
  • Loss resulting from bad sectors;
  • User mistakes.

To create an image, do the following:

  1. Make sure that you have enough free space to save the image. The image file size usually equals the disk size.

  2. Select the disk in the main window, and choose from the menu ToolsSave Disk. You can select multiple disks to be saved.

  3. When the image creation wizard starts, you can choose to save the entire disk or select only a part of it. Specify the parameters and click Next.

    Hetman Raid Recovery: Image Creation Wizard
  4. At this stage, you need to choose a directory where to save the image. Choose any disk connected to this PC, or save the image by FTP.

    Hetman Raid Recovery: hoose any disk connected to this PC, or save the image by FTP

Where are user’s files stored?

The Buffalo TeraStation TS-RH4.0TGL/R5 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.

Comparison of software for RAID recovery

Product Operating system License type RAID controller support Supported file systems Virtual RAID controller support Data recovery from damaged RAID File preview
Hetman RAID Recovery Windows Paid Yes, over 100 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes
DiskInternals RAID Recovery Windows Paid Yes, over 100 controllers FAT, NTFS, Ext2/3/4, HFS+ No Yes Yes
R-Studio Windows, Mac, Linux Paid Yes, over 200 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes
UFS Explorer RAID Recovery Windows, Mac, Linux Paid Yes, over 1,000 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes
EaseUS Data Recovery Windows Paid Yes, over 20 controllers FAT, NTFS, Ext2/3/4, HFS+ No Yes Yes
ReclaiMe Free RAID Recovery Windows Free 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 TS-RH4.0TGL/R5, feel free to leave a comment!
  • Roland Laws
    Roland Laws 27.08.2023 22:45 #
    Are there any specific firmware updates or patches recommended for data recovery from NAS Buffalo TeraStation TS-RH4.0TGL/R5 devices?
    • Hetman Software
      Hetman Software 27.08.2023 23:01 #

      Yes, there are specific firmware updates and patches recommended for data recovery from NAS Buffalo TeraStation TS-RH4.0TGL/R5 devices. Buffalo periodically releases firmware updates to improve the functionality and performance of their devices, including data recovery features. It is recommended to regularly check for firmware updates on Buffalo's official website and install them to ensure that you have the latest version with the most up-to-date data recovery capabilities. Additionally, Buffalo may also release specific patches or updates to address any known issues or vulnerabilities that could affect data recovery on the TeraStation devices. It is important to stay updated with these patches to ensure the best possible data recovery experience.

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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 network protocols supported by the NAS Buffalo TeraStation TS-RH4.0TGL/R5?

    The NAS Buffalo TeraStation TS-RH4.0TGL/R5 supports the following network protocols:

    1. TCP/IP: Transmission Control Protocol/Internet Protocol is the basic communication protocol used for data transmission over networks.
    2. SMB/CIFS: Server Message Block/Common Internet File System is a network file sharing protocol used by Windows operating systems.
    3. AFP: Apple Filing Protocol is a network protocol used by Apple devices for file sharing and accessing networked file systems.
    4. NFS: Network File System is a distributed file system protocol used by Unix-like operating systems to share files and directories over a network.
    5. FTP: File Transfer Protocol is a standard network protocol used for transferring files between a client and a server on a computer network.
    6. SFTP: Secure File Transfer Protocol is a secure version of FTP that provides encrypted file transfer and secure authentication.
    7. HTTP: Hypertext Transfer Protocol is the protocol used for transferring hypertext (web) documents over the internet.
    8. HTTPS: Hypertext Transfer Protocol Secure is the secure version of HTTP that uses encryption to protect data during transmission.
    9. SNMP: Simple Network Management Protocol is used for managing and monitoring network devices and their performance.
    10. NTP: Network Time Protocol is used for synchronizing the clocks of computers and network devices over a network.

    These protocols enable the NAS Buffalo TeraStation TS-RH4.0TGL/R5 to communicate and share data with various devices and operating systems on the network.

  • How do the network protocols of the NAS Buffalo TeraStation TS-RH4.0TGL/R5 enhance its performance and connectivity?

    The network protocols used by the NAS Buffalo TeraStation TS-RH4.0TGL/R5 play a crucial role in enhancing its performance and connectivity. Here are a few ways these protocols contribute to the device's capabilities:

    1. Gigabit Ethernet: The TeraStation TS-RH4.0TGL/R5 is equipped with Gigabit Ethernet ports, allowing for high-speed data transfer between the NAS and connected devices. This protocol offers significantly faster network speeds compared to traditional Fast Ethernet, resulting in improved performance and reduced transfer times.
    2. TCP/IP (Transmission Control Protocol/Internet Protocol): TCP/IP is the fundamental protocol used for data transmission over networks, including the internet. By utilizing TCP/IP, the NAS can establish reliable connections, ensure data integrity, and support seamless communication between devices.
    3. SMB (Server Message Block): SMB is a network file-sharing protocol commonly used by Windows devices. The TeraStation TS-RH4.0TGL/R5 supports SMB, enabling easy file sharing and access across Windows-based networks. This protocol enhances connectivity by allowing seamless integration with Windows workstations and servers.
    4. FTP (File Transfer Protocol): FTP is a standard protocol for transferring files between computers over a network. The TeraStation TS-RH4.0TGL/R5 supports FTP, enabling users to access and transfer files remotely. This protocol enhances connectivity by providing a convenient and secure method for remote file management.
    5. AFP (Apple Filing Protocol): AFP is a network protocol primarily used by Apple devices for file sharing. The TeraStation TS-RH4.0TGL/R5 supports AFP, ensuring seamless connectivity and file sharing with macOS and iOS devices. This protocol enables efficient collaboration and access to files across Apple-based networks.
    6. NFS (Network File System): NFS is a distributed file system protocol commonly used in Unix and Linux environments. The TeraStation TS-RH4.0TGL/R5 supports NFS, allowing Unix and Linux systems to access and share files stored on the NAS. This protocol enhances connectivity by enabling cross-platform file sharing and collaboration.

    By supporting a range of network protocols, the NAS Buffalo TeraStation TS-RH4.0TGL/R5 ensures compatibility with various operating systems and devices, thereby enhancing its performance and connectivity capabilities.

  • Can the NAS Buffalo TeraStation TS-RH4.0TGL/R5 support multiple network protocols simultaneously?

    Yes, the NAS Buffalo TeraStation TS-RH4.0TGL/R5 can support multiple network protocols simultaneously. It supports various protocols such as SMB/CIFS, AFP, NFS, FTP, and SFTP, allowing it to be accessed by different operating systems and devices simultaneously over the network.

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