Restoring a Faulty RAID Array on NAS Buffalo Drive Station HD-CXT1.5TU2 with Multiple Disks

Learn how to restore a RAID array on a ⭐ NAS with several damaged disks using our comprehensive guide.

Restoring a Faulty RAID Array on NAS Buffalo Drive Station HD-CXT1.5TU2 with Multiple Disks

Buffalo Drive Station HD-CXT1.5TU2 NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from Drive Station HD-CXT1.5TU2.

Restoring a Faulty RAID Array on NAS Buffalo Drive Station HD-CXT1.5TU2 with Multiple Disks

RAID Recovery™ 2.6
Recover data from damaged RAID arrays inaccessible from a computer.
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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.

Are there any specific system logs or event notifications to monitor for early detection of data loss on NAS Buffalo Drive Station HD-CXT1.5TU2 devices?

Yes, there are specific system logs and event notifications that can be monitored for early detection of data loss on NAS Buffalo Drive Station HD-CXT1.5TU2 devices. Some of the key logs and notifications to monitor include:

  1. File system logs: Monitor the file system logs for any errors or warnings related to disk or file system issues. Look for messages indicating disk failures, file system corruption, or any other abnormal behavior.
  2. SMART status: The Self-Monitoring, Analysis, and Reporting Technology (SMART) feature of the hard drives can provide early warnings of potential disk failures. Monitor the SMART status of the hard drives and look for any indicators of impending failure, such as increased bad sectors or high temperature readings.
  3. RAID status: If the NAS is configured with a RAID array, monitor the RAID status and notifications. Look for any alerts indicating degraded or failed RAID arrays, as this can lead to data loss if not addressed promptly.
  4. Backup status: If the NAS is configured to perform regular backups, monitor the backup status and notifications. Ensure that backups are completing successfully and without errors. Any failures or inconsistencies in the backup process can indicate potential data loss.
  5. System event logs: Monitor the system event logs for any critical or error events that could indicate data loss. Look for events related to disk I/O errors, data corruption, or any other abnormal system behavior.
  6. Network connectivity: Monitor the network connectivity of the NAS device. Any network interruptions or connectivity issues can lead to data loss if the NAS becomes inaccessible or disconnected during data transfers.

By monitoring these logs and notifications, you can detect potential issues early on and take appropriate actions to prevent or minimize data loss on NAS Buffalo Drive Station HD-CXT1.5TU2 devices.

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

Although NAS Drive Station HD-CXT1.5TU2 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 Drive Station HD-CXT1.5TU2. 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

Drive Station HD-CXT1.5TU2 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;

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 Drive Station HD-CXT1.5TU2 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 Drive Station HD-CXT1.5TU2, feel free to leave a comment!
  • Eden Drinkwater
    Eden Drinkwater 28.08.2023 08:38 #
    Can data recovery from a NAS Buffalo Drive Station HD-CXT1.5TU2 device be done if the device is showing signs of firmware or software bugs?
    • Hetman Software
      Hetman Software 28.08.2023 09:59 #

      Yes, data recovery from a NAS Buffalo Drive Station HD-CXT1.5TU2 device can still be possible even if the device is showing signs of firmware or software bugs. However, it is important to note that the process may be more complex and require specialized expertise.

      In such cases, it is recommended to contact a professional data recovery service provider who has experience with NAS devices and can handle firmware or software related issues. They will have the necessary tools and knowledge to diagnose and resolve the bugs, and recover the data from the device.

      It is important to avoid attempting any DIY solutions or using generic data recovery software, as they may further complicate the situation and potentially cause permanent 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

  • How does the NAS Buffalo Drive Station HD-CXT1.5TU2 serve as a backup solution for web hosting?

    The NAS Buffalo Drive Station HD-CXT1.5TU2 can serve as a backup solution for web hosting in the following ways:

    1. Network Attached Storage (NAS): The Drive Station HD-CXT1.5TU2 is a NAS device, which means it can be connected to a network and accessed by multiple computers. This allows web hosting providers to store and access their website backups from any connected device on the network.
    2. High Storage Capacity: With a capacity of 1.5TB, the Drive Station HD-CXT1.5TU2 provides ample space to store website backups, databases, and other important files related to web hosting. It ensures that there is enough storage available to backup and restore the entire web hosting environment.
    3. Automatic Backup: The Drive Station HD-CXT1.5TU2 can be configured to perform automatic backups at regular intervals. This eliminates the need for manual backups and ensures that the latest version of the website and its associated data is always backed up.
    4. RAID Support: The Drive Station HD-CXT1.5TU2 supports RAID configurations, such as RAID 1 (mirroring). RAID allows for data redundancy by creating a duplicate copy of the stored data on another drive. In case of a drive failure, the backup data can be easily restored from the mirrored drive, minimizing downtime and data loss.
    5. Data Protection: The Drive Station HD-CXT1.5TU2 offers various data protection features like password protection and encryption. This ensures that the backed-up data remains secure and inaccessible to unauthorized users.
    6. Remote Access: Some NAS devices, including the Drive Station HD-CXT1.5TU2, provide remote access capabilities. This allows web hosting providers to access and manage their backups from anywhere, even outside the office or data center. Remote access simplifies the backup and restore process, making it more convenient and efficient.

    Overall, the NAS Buffalo Drive Station HD-CXT1.5TU2 serves as a reliable and efficient backup solution for web hosting by providing network storage, high capacity, automatic backups, RAID support, data protection, and remote access capabilities.

  • What are the key features and specifications of the NAS Buffalo Drive Station HD-CXT1.5TU2 that make it suitable for web hosting backup?

    The NAS Buffalo Drive Station HD-CXT1.5TU2 is a network-attached storage device that offers several key features and specifications that make it suitable for web hosting backup. These include:

    1. Storage capacity: The Drive Station HD-CXT1.5TU2 has a storage capacity of 1.5TB, which provides ample space to store website data, databases, and other files related to web hosting.
    2. High-speed data transfer: It supports USB 2.0 connectivity, which allows for fast data transfer speeds between the NAS and the web hosting server. This ensures quick and efficient backup processes.
    3. RAID support: The device supports RAID 1 (mirroring) configuration, which means it can duplicate data across multiple drives. This redundancy helps protect against data loss in case of drive failure, ensuring the integrity of web hosting backups.
    4. Automatic backup software: The Drive Station HD-CXT1.5TU2 comes with Buffalo's Backup Utility software, which enables automated backups of web hosting data. This feature ensures regular and consistent backups without manual intervention.
    5. Web access: The NAS device allows for remote web access, which means web hosting backups can be accessed and managed from anywhere with an internet connection. This feature is particularly useful for web hosting providers who need to access backups while on the go.
    6. Data encryption: The Drive Station HD-CXT1.5TU2 supports hardware-based AES encryption, which adds an extra layer of security to web hosting backups. This ensures that sensitive data remains protected and inaccessible to unauthorized users.
    7. Scalability: The NAS device supports daisy-chaining, allowing multiple Drive Stations to be connected together for increased storage capacity. This scalability makes it suitable for web hosting providers with growing backup needs.

    Overall, the NAS Buffalo Drive Station HD-CXT1.5TU2 offers a combination of storage capacity, high-speed data transfer, RAID support, automated backup software, remote access, data encryption, and scalability, making it a suitable choice for web hosting backup purposes.

  • Can the NAS Buffalo Drive Station HD-CXT1.5TU2 be easily integrated with existing web hosting setups, and what are the steps involved in setting it up for backup purposes?

    The NAS Buffalo DriveStation HD-CXT1.5TU2 can be integrated with existing web hosting setups, but it's important to note that it is primarily designed for local network storage rather than being directly connected to the web hosting server.

    To set up the DriveStation for backup purposes, you can follow these general steps:

    1. Connect the DriveStation to your local network: Plug the DriveStation into your router using an Ethernet cable.
    2. Configure the DriveStation: Access the DriveStation's web-based interface by entering its IP address into a web browser. From there, you can set up the desired network settings, such as assigning a static IP address or configuring DHCP.
    3. Create user accounts and permissions: Set up user accounts and assign appropriate access permissions to control who can access and modify the DriveStation's content.
    4. Configure backup software: Install backup software on your computer or server that supports network-attached storage (NAS) devices. Examples of such software include Windows Backup, Time Machine (for Mac), or third-party solutions like Acronis True Image or Veeam Backup & Replication. Follow the software's instructions to configure it to back up data to the DriveStation.
    5. Set up scheduled backups: Configure the backup software to run regular backups according to your desired schedule. This ensures that your data is automatically backed up without manual intervention.
    6. Test and verify backups: After the initial backup, verify that your data is successfully stored on the DriveStation. Perform test restores to ensure the backup process is working correctly.

    It's worth noting that the specific steps may vary depending on the operating system, backup software, and network configuration you are using. It is recommended to consult the DriveStation's user manual and the documentation of your backup software for detailed instructions tailored to your setup.

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