Steps to Restore a NAS Buffalo Drive Station HD-CX500U2 RAID Array with Multiple Disk Failures

Restore a RAID array on a ⭐ NAS even if multiple disks are damaged using our comprehensive methods.

Steps to Restore a NAS Buffalo Drive Station HD-CX500U2 RAID Array with Multiple Disk Failures

Buffalo Drive Station HD-CX500U2 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-CX500U2.

Steps to Restore a NAS Buffalo Drive Station HD-CX500U2 RAID Array with Multiple Disk Failures

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.

What are the common causes of data loss in NAS Buffalo Drive Station HD-CX500U2 devices?

There are several common causes of data loss in NAS Buffalo Drive Station HD-CX500U2 devices. These include:

  1. Hardware failure: The hard drive inside the NAS device can fail due to various reasons such as mechanical issues, electrical problems, or manufacturing defects. This can result in data loss if the drive becomes inaccessible or unreadable.
  2. Power surges or outages: Sudden power surges or power outages can cause damage to the NAS device and the connected hard drive. It can lead to data corruption or even complete loss of data if the drive gets damaged.
  3. Accidental deletion: Users may accidentally delete important files or folders from the NAS device, resulting in data loss. This can happen due to human error or mistakenly deleting files thinking they are no longer needed.
  4. File system corruption: The file system of the NAS device can get corrupted due to various reasons like improper shutdowns, software bugs, or malware infections. This can make the data stored on the device inaccessible or unreadable.
  5. Virus or malware attacks: NAS devices are not immune to virus or malware attacks. If the device gets infected, it can lead to data loss or data corruption. The malware can delete or modify files, making them unusable.
  6. Physical damage: Physical damage to the NAS device, such as dropping it or exposing it to extreme temperatures or water, can result in data loss. The hard drive inside can get damaged, leading to data inaccessibility.
  7. Firmware or software issues: Problems with the firmware or software of the NAS device can cause data loss. This can happen due to software bugs, compatibility issues, or failed firmware updates.

It is important to regularly backup your data to minimize the risk of data loss and consider implementing data recovery solutions to recover lost data in case of any unforeseen circumstances.

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

Although NAS Drive Station HD-CX500U2 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-CX500U2. 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.

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How to recover data from a Buffalo

How to recover data from a Buffalo

Drive Station HD-CX500U2 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-CX500U2 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-CX500U2, feel free to leave a comment!
  • Wyatt MacAndrew
    Wyatt MacAndrew 28.08.2023 14:55 #
    Is it possible to recover data from a NAS Buffalo Drive Station HD-CX500U2 device that has been affected by a controller failure or disk array problem?
    • Hetman Software
      Hetman Software 28.08.2023 16:00 #

      Yes, it is possible to recover data from a NAS Buffalo Drive Station HD-CX500U2 device that has been affected by a controller failure or disk array problem. However, the process can be complex and may require professional data recovery services.

      First, it is important to determine the exact cause of the failure. If the controller has failed, it may be possible to replace it with a compatible one to regain access to the data. However, if the disk array has encountered problems, it may require more advanced techniques.

      In such cases, it is recommended to contact a professional data recovery service provider. They have the expertise and specialized tools to diagnose and recover data from failed NAS devices. They can also handle disk array problems and rebuild the array to retrieve the data.

      It is important to note that attempting DIY data recovery methods without proper knowledge and tools can potentially cause further damage and make data recovery more difficult or even impossible. Therefore, it is advisable to seek professional help for the best chances of successful data 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 necessary steps to connect an IP camera to a NAS Buffalo Drive Station HD-CX500U2?

    To connect an IP camera to a NAS Buffalo Drive Station HD-CX500U2, you need to follow these necessary steps:

    1. Set up the IP camera: Install the IP camera according to the manufacturer's instructions. This typically involves connecting the camera to a power source and a network router using an Ethernet cable.
    2. Configure IP camera settings: Access the IP camera's configuration interface through a web browser by entering the camera's IP address. You may need to refer to the camera's user manual for the default IP address and login credentials. Configure the camera's network settings, including assigning a static IP address within your network's range.
    3. Connect the IP camera to the NAS: Connect the IP camera to the same network as the NAS Buffalo Drive Station HD-CX500U2. Ensure that both the IP camera and the NAS are connected to the same router or switch using Ethernet cables.
    4. Access the NAS configuration interface: Open a web browser and enter the IP address of the NAS Buffalo Drive Station HD-CX500U2. Log in using the administrator credentials.
    5. Set up NAS storage: In the NAS configuration interface, navigate to the storage settings or shared folders section. Create a new shared folder to store the IP camera footage. Assign appropriate permissions to the folder.
    6. Configure the IP camera recording settings: Return to the IP camera's configuration interface and find the recording settings. Configure the camera to save the footage directly to the shared folder on the NAS. Enter the NAS's IP address, the shared folder name, and the appropriate login credentials.
    7. Test the connection: Save the settings on both the IP camera and the NAS. Test the connection by initiating a recording on the IP camera and checking if the footage is being saved to the NAS shared folder.

    Once the steps above are completed, the IP camera will be connected to the NAS Buffalo Drive Station HD-CX500U2, and the camera footage will be saved directly to the NAS for storage and access.

  • Can the NAS Buffalo Drive Station HD-CX500U2 support multiple IP cameras simultaneously? If yes, what is the maximum number of cameras it can handle?

    The NAS Buffalo Drive Station HD-CX500U2 is an external hard drive and does not have built-in support for IP cameras. It is designed to provide storage for files and data rather than functioning as a network video recorder (NVR) for IP cameras. Therefore, it cannot support multiple IP cameras simultaneously.

  • Are there any specific network settings or configurations required to ensure a successful connection between the IP camera and the NAS Buffalo Drive Station HD-CX500U2?

    To ensure a successful connection between an IP camera and the NAS Buffalo DriveStation HD-CX500U2, you need to configure the network settings properly. Here are the steps you can follow:

    1. Connect the IP camera and the NAS Buffalo DriveStation HD-CX500U2 to the same network. Make sure they have unique IP addresses within the same subnet.
    2. Access the web interface of the IP camera and configure its network settings. Assign a static IP address, subnet mask, gateway, and DNS server to the IP camera.
    3. Configure the network settings of the NAS Buffalo DriveStation HD-CX500U2. Assign a static IP address, subnet mask, gateway, and DNS server to the NAS.
    4. Ensure that the IP camera supports network file sharing protocols like SMB/CIFS or NFS, which are supported by the NAS Buffalo DriveStation HD-CX500U2.
    5. On the NAS, create a shared folder where the IP camera can save the recorded footage. Set appropriate permissions for this folder to allow the IP camera to write files to it.
    6. On the IP camera, configure the recording settings to save the footage to the shared folder on the NAS. Enter the network path or IP address of the NAS, along with the login credentials if required.
    7. Test the connection by initiating a recording on the IP camera and verifying if the footage is being saved to the shared folder on the NAS.

    By properly configuring the network settings and ensuring compatibility between the IP camera and the NAS, you can establish a successful connection and enable the camera to save recordings to the NAS.

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