How to Restore a NAS Buffalo Drive Station HD-CX2.0TU2 RAID Array After Multiple Disk Failures

Has your NAS Buffalo Drive Station HD-CX2.0TU2 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 Restore a NAS Buffalo Drive Station HD-CX2.0TU2 RAID Array After Multiple Disk Failures
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Buffalo Drive Station HD-CX2.0TU2 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 Drive Station HD-CX2.0TU2. 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 Restore a NAS Buffalo Drive Station HD-CX2.0TU2 RAID Array After Multiple Disk Failures

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 improper configuration of network settings or IP addresses result in data loss on NAS Buffalo Drive Station HD-CX2.0TU2 devices?

Yes, improper configuration of network settings or IP addresses can potentially result in data loss on NAS Buffalo Drive Station HD-CX2.0TU2 devices. If the network settings are misconfigured, it may lead to connectivity issues, making it difficult to access or transfer data to/from the device. Additionally, incorrect IP address settings can cause the device to be unreachable or inaccessible over the network, potentially resulting in data loss if the data cannot be accessed or backed up properly. It is important to ensure that network settings and IP addresses are correctly configured to avoid such issues and prevent data loss.

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

Although the NAS Drive Station HD-CX2.0TU2 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 Drive Station HD-CX2.0TU2. 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

Drive Station HD-CX2.0TU2 has 1 HDD slots, and it supports the following array types:

  • RAID 0;
  • RAID 1;
  • 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 Drive Station HD-CX2.0TU2 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 Drive Station HD-CX2.0TU2, feel free to leave a comment!
    Reply
  • Niles Southcott
    Niles Southcott 28.08.2023 07:40 #
    How does data recovery from NAS Buffalo Drive Station HD-CX2.0TU2 differ from other storage devices?
    Reply
    • Hetman Software
      Hetman Software 28.08.2023 08:59 #

      Data recovery from a NAS Buffalo Drive Station HD-CX2.0TU2 differs from other storage devices in a few ways:

      1. Network Attached Storage (NAS): The Buffalo Drive Station HD-CX2.0TU2 is a NAS device, which means it is designed to be connected to a network and accessed by multiple users simultaneously. Unlike traditional storage devices like external hard drives or USB flash drives, NAS devices provide file sharing and centralized storage capabilities. This means that data recovery from a NAS involves dealing with network protocols and configurations, as well as potential issues related to multiple users accessing and modifying data.
      2. RAID Configuration: Many NAS devices, including the Buffalo Drive Station HD-CX2.0TU2, support RAID (Redundant Array of Independent Disks) configurations. RAID provides data redundancy and improves performance by distributing data across multiple drives. However, recovering data from a NAS with RAID can be more complex than recovering data from a single drive. The recovery process may involve rebuilding the RAID array, identifying failed drives, and extracting data from multiple disks.
      3. File System: The Buffalo Drive Station HD-CX2.0TU2 typically uses a file system like NTFS or FAT32 to organize and manage data. The file system structure may differ from other storage devices, such as Mac-formatted drives that use HFS+ or APFS. Data recovery from a NAS may require specialized knowledge of the specific file system used by the device to ensure successful recovery.
      4. Data Access: Since NAS devices are connected to a network, data recovery may involve accessing the device remotely rather than directly connecting it to a computer. This requires expertise in network protocols, such as SMB (Server Message Block) or NFS (Network File System), to establish a connection and retrieve the data.

      Overall, data recovery from a NAS Buffalo Drive Station HD-CX2.0TU2 can be more complex due to its networked nature, RAID configuration, specific file system, and remote data access requirements. It is recommended to consult professional data recovery services experienced in dealing with NAS devices to ensure the best chances of successful recovery.

      Reply
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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

  • How can I access the settings menu on the NAS Buffalo Drive Station HD-CX2.0TU2?

    To access the settings menu on the NAS Buffalo DriveStation HD-CX2.0TU2, you can follow these steps:

    1. Connect the NAS Buffalo DriveStation to your computer using a USB cable.
    2. Make sure the drive is powered on and recognized by your computer.
    3. Open a web browser on your computer and enter the IP address of the DriveStation in the address bar. The default IP address is usually "192.168.11.150".
    4. Press Enter to access the web-based user interface of the DriveStation.
    5. You will be prompted to enter the username and password. The default username is "admin" and the default password is "password". If you have changed these credentials, enter the updated username and password.
    6. Once you have successfully logged in, you will be able to access the settings menu of the DriveStation.
    7. Explore the different settings options available to configure and customize your DriveStation according to your needs.

    Note: It's important to keep in mind that the specific steps may vary slightly depending on the firmware version or any customizations made to the DriveStation's settings.

  • What are the available options and configurations in the settings menu of the NAS Buffalo Drive Station HD-CX2.0TU2?

    The available options and configurations in the settings menu of the NAS Buffalo DriveStation HD-CX2.0TU2 may vary depending on the firmware version and specific model of the device. However, here are some common options and configurations that you may find in the settings menu:

    1. Device Information: This section displays information about the NAS device, including the model, firmware version, serial number, and network settings.
    2. Network Settings: Here, you can configure the network settings of the NAS device, including IP address, subnet mask, gateway, DNS server, and other network-related settings.
    3. Time Settings: This section allows you to configure the date and time settings of the NAS device. You can set the time manually or synchronize it with an NTP (Network Time Protocol) server.
    4. User Management: In this section, you can manage users and user groups. You can create new users, modify existing users, assign permissions, and set passwords for accessing the NAS device.
    5. Shared Folders: Here, you can create and manage shared folders on the NAS device. You can set permissions for each shared folder, including read/write access, guest access, and access control for specific users or groups.
    6. RAID Configuration: If your NAS device supports RAID (Redundant Array of Independent Disks), you can configure the RAID level and settings in this section. You can choose between different RAID levels such as RAID 0, RAID 1, JBOD (Just a Bunch of Disks), etc.
    7. Backup Settings: This section allows you to configure backup settings for the NAS device. You can set up scheduled backups, remote backups, or configure backup to external USB drives.
    8. System Settings: In this section, you can configure various system-related settings, including power management, firmware updates, email notifications, event logs, etc.
    9. Security Settings: Here, you can configure security-related settings such as firewall rules, SSL/TLS encryption, and other security measures to protect the NAS device and its data.
    10. Advanced Settings: This section provides access to advanced configurations such as network protocols (FTP, SMB, NFS), DHCP settings, SNMP (Simple Network Management Protocol), and other advanced options.

    It's important to note that the options and configurations may differ based on the specific model and firmware version of the NAS device. It is recommended to refer to the user manual or documentation provided by Buffalo for detailed information about the settings menu of your specific device.

  • How can I optimize the performance and security settings of the NAS Buffalo Drive Station HD-CX2.0TU2 for my specific needs?

    To optimize the performance and security settings of the Buffalo DriveStation HD-CX2.0TU2 NAS for your specific needs, follow these steps:

    1. Firmware Update: Ensure that your NAS device is running the latest firmware version available. Visit the Buffalo website and download the firmware update if necessary. Regular firmware updates often include performance improvements and security patches.
    2. Network Configuration: Connect the NAS directly to your router using an Ethernet cable for the best performance. Avoid using Wi-Fi as it may introduce latency and reduce transfer speeds.
    3. RAID Configuration: If your NAS supports RAID, configure it according to your needs. RAID 0 offers maximum performance and capacity but lacks redundancy, while RAID 1 provides data mirroring for increased data protection. Choose the appropriate RAID level based on your priorities.
    4. File System: Select the appropriate file system for your NAS. If you primarily use Windows devices, NTFS is recommended. For cross-platform compatibility, consider using exFAT or FAT32. Ensure the file system is supported by your NAS and meets your requirements.
    5. User Accounts and Permissions: Create individual user accounts for each person who needs access to the NAS. Assign appropriate permissions to each user, limiting access to specific folders or files. This helps enhance security and prevent unauthorized access.
    6. Firewall and Port Forwarding: Configure your router's firewall to allow necessary ports for NAS access. Enable port forwarding if you want to remotely access the NAS from outside your local network. Be cautious and ensure you understand the security implications of opening ports.
    7. Encryption: If your NAS supports it, enable encryption for data stored on the device. This adds an extra layer of security, especially if the NAS is accessible from the internet.
    8. Antivirus and Malware Protection: Install antivirus software on your connected devices to scan files before transferring them to the NAS. This helps prevent malware from infecting your NAS and spreading to other devices.
    9. Regular Backups: Implement a backup strategy to ensure data redundancy and protection against potential data loss. Schedule regular backups of critical data to an external storage device or cloud service.
    10. Power Management: Adjust the power settings of your NAS to optimize energy consumption and reduce wear and tear. Configure auto power-off or sleep mode when the NAS is idle for a certain period.

    Remember to refer to the user manual or support resources provided by Buffalo for specific instructions on configuring your NAS model.
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