How to recover data from Buffalo CloudStation CS-WV2.0/R1 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 CloudStation CS-WV2.0/R1

Buffalo CloudStation CS-WV2.0/R1 NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from CloudStation CS-WV2.0/R1.

How to recover data from NAS Buffalo CloudStation CS-WV2.0/R1

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.

What are the common causes of data loss in NAS Buffalo CloudStation CS-WV2.0/R1 devices?

There are several common causes of data loss in NAS Buffalo CloudStation CS-WV2.0/R1 devices, including:

  1. Hardware failure: This can occur due to issues with the hard drives, power supply, or other components of the NAS device. Hardware failure can lead to data corruption or complete loss of data.
  2. Power outages or surges: Sudden power outages or power surges can cause the NAS device to shut down improperly, leading to data loss or corruption.
  3. Accidental deletion or formatting: Users may accidentally delete important files or format the NAS device, resulting in the loss of data.
  4. Virus or malware attacks: If the NAS device gets infected with a virus or malware, it can lead to data loss or corruption.
  5. Software or firmware issues: Bugs or glitches in the NAS device's software or firmware can cause data loss or corruption.
  6. Network issues: Problems with the network connection or interruptions in data transfer can result in data loss.
  7. User error: Human errors, such as improper configuration, improper handling of the NAS device, or improper use of the software, can lead to data loss.

It is important to regularly back up data from the NAS device to minimize the risk of data loss.

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

Although NAS CloudStation CS-WV2.0/R1 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 CloudStation CS-WV2.0/R1. 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

CloudStation CS-WV2.0/R1 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 CloudStation CS-WV2.0/R1 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 CloudStation CS-WV2.0/R1, feel free to leave a comment!
  • Ted Henwood
    Ted Henwood 31.08.2023 02:46 #
    Is it possible to recover data from a NAS Buffalo CloudStation CS-WV2.0/R1 device that has been affected by a firmware corruption or update failure?
    • Hetman Software
      Hetman Software 31.08.2023 03:59 #

      It is possible to recover data from a NAS Buffalo CloudStation CS-WV2.0/R1 device that has been affected by firmware corruption or update failure. However, the process may vary depending on the specific circumstances and the severity of the issue.

      Here are a few steps you can try to recover the data:

      1. Contact Buffalo Support: Reach out to Buffalo's technical support team for assistance. They may provide specific instructions or tools to recover the data from the device.
      2. Power Cycle: Try power cycling the device by unplugging it from the power source, waiting for a few minutes, and then plugging it back in. Sometimes, this can resolve firmware corruption issues.
      3. Factory Reset: If the firmware corruption is preventing the device from functioning properly, you may need to perform a factory reset. This will restore the device to its default settings, but it may also delete any data stored on it. Use this option only if you have a backup of your data.
      4. Data Recovery Software: If the firmware corruption has not affected the underlying data on the hard drives, you may be able to recover the data using specialized data recovery software. Connect the hard drives to a computer and use data recovery software to scan for and recover the files.
      5. Professional Data Recovery Service: If the above steps do not work or if the data is critical and you do not want to risk further damage, you can consider contacting a professional data recovery service. They have specialized tools and expertise to recover data from various storage devices, including NAS devices.

      Remember to always have a backup of your important data to avoid potential data loss situations.

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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 recommended specifications and compatibility requirements for an additional hard drive to be used with the NAS Buffalo CloudStation CS-WV2.0/R1?

    The recommended specifications and compatibility requirements for an additional hard drive to be used with the NAS Buffalo CloudStation CS-WV2.0/R1 are as follows:

    1. Hard Drive Interface: The NAS supports SATA II or SATA III hard drives. Make sure the hard drive you choose has a compatible interface.
    2. Capacity: The NAS supports various capacities of hard drives, ranging from a few hundred gigabytes to multiple terabytes. Choose a capacity that suits your storage needs.
    3. Form Factor: The NAS supports 3.5-inch SATA hard drives. Ensure that the hard drive you select matches this form factor.
    4. RPM: The NAS is compatible with hard drives that have different rotational speeds, such as 5400 RPM or 7200 RPM. Higher RPM drives offer faster data transfer speeds.
    5. File System: The NAS supports various file systems, including NTFS, FAT32, and HFS+. Ensure that the file system of the hard drive is compatible with the NAS.
    6. RAID Compatibility: If you plan to use the hard drive in a RAID configuration, make sure it is compatible with the RAID level supported by the NAS. The CloudStation CS-WV2.0/R1 supports RAID 0, RAID 1, and JBOD.
    7. Power Requirements: Check the power requirements of the hard drive to ensure it is within the limits of the NAS's power supply.
    8. Compatibility with Operating Systems: The NAS is compatible with various operating systems, including Windows, Mac, and Linux. Verify that the hard drive is compatible with your operating system.

    It is recommended to consult the user manual or the manufacturer's website for the latest information on compatible hard drives for the Buffalo CloudStation CS-WV2.0/R1 NAS.

  • How can I properly install and configure an additional hard drive in the NAS Buffalo CloudStation CS-WV2.0/R1 for optimal performance and storage capacity?

    To properly install and configure an additional hard drive in the NAS Buffalo CloudStation CS-WV2.0/R1 for optimal performance and storage capacity, follow these steps:

    1. Check compatibility: Ensure that the hard drive you want to install is compatible with the NAS Buffalo CloudStation CS-WV2.0/R1. Refer to the product documentation or Buffalo's website for a list of compatible drives.
    2. Power off the NAS: Before installing the new hard drive, power off the NAS and disconnect it from the power source.
    3. Open the NAS enclosure: Remove the screws or clips that hold the enclosure together and carefully open it. Be cautious not to damage any internal components.
    4. Install the hard drive: Locate the drive bay in the NAS enclosure and insert the additional hard drive into an available slot. Secure it in place using screws or clips provided with the NAS.
    5. Connect the necessary cables: Connect the necessary cables to the hard drive, including the power cable and data cable. Ensure they are securely connected.
    6. Close the NAS enclosure: Once the hard drive is properly installed and connected, carefully close the NAS enclosure and secure it using screws or clips.
    7. Power on the NAS: Connect the NAS to the power source and power it on. Wait for it to fully boot up.
    8. Access the NAS interface: Open a web browser on a computer connected to the same network as the NAS and enter the IP address of the NAS in the address bar. This will take you to the NAS interface.
    9. Configure the new hard drive: In the NAS interface, go to the storage settings or disk management section. You should see the newly installed hard drive listed. Initialize and format the drive to make it usable. Follow the on-screen instructions to complete the process.
    10. Set up RAID (optional): If you want to configure the new hard drive in a RAID setup for data redundancy or performance, refer to the NAS documentation for instructions on setting up RAID.
    11. Optimize performance settings: In the NAS interface, check for any performance-related settings that can be adjusted to optimize the performance of the new hard drive. This may include enabling write caching, adjusting file system settings, or configuring network settings.
    12. Test and monitor: After configuring the new hard drive, run performance tests to ensure it is functioning correctly. Monitor the NAS regularly to ensure optimal performance and storage capacity.

    Note: It is recommended to backup your data before making any changes to the NAS configuration.

  • Are there any limitations or considerations to keep in mind when adding an additional hard drive to the NAS Buffalo CloudStation CS-WV2.0/R1, such as maximum capacity or RAID configuration options?

    Yes, there are certain limitations and considerations to keep in mind when adding an additional hard drive to the NAS Buffalo CloudStation CS-WV2.0/R1:

    1. Maximum Capacity: The CloudStation CS-WV2.0/R1 has a maximum supported capacity for each hard drive. It is important to check the product documentation or specifications to determine the maximum capacity allowed. Exceeding this limit may result in compatibility issues or failure to recognize the drive.
    2. RAID Configuration: The CloudStation CS-WV2.0/R1 supports different RAID configurations, such as RAID 0, RAID 1, and JBOD (Just a Bunch of Disks). However, it is important to note that the RAID configuration options may be limited based on the number of hard drive slots available in the NAS. For example, if the NAS has only two drive slots, you may be limited to RAID 0 or RAID 1 configurations.
    3. Drive Compatibility: When adding an additional hard drive, it is crucial to ensure compatibility with the NAS. Check the supported drive types, sizes, and interfaces (SATA, SAS, etc.) mentioned in the product documentation. Using incompatible drives may lead to issues like unrecognized drives or reduced performance.
    4. Power and Cooling: Adding extra hard drives to the NAS increases power consumption and generates more heat. Make sure that the NAS has adequate power supply and cooling capabilities to handle the additional drives. Insufficient power or cooling can lead to system instability or premature drive failure.
    5. Data Backup and Migration: Before adding a new hard drive or configuring RAID, it is recommended to backup all important data. Adding a new drive or changing RAID configurations may involve data migration or initialization, which can result in data loss if not performed correctly.

    It is always advisable to consult the product documentation or contact Buffalo support for specific details and recommendations related to your NAS model.

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