Recovering RAID Disk Files When NAS Buffalo LinkStation LS-WV2.0TL/R1 Won’t Start

Contents

• Why Regular Data Recovery Tools Can’t Restore Files from RAID
• Key Information About the NAS Buffalo LinkStation LS-WV2.0TL/R1
• How to Remove Hard Disks from Your NAS and Connect Them to a PC
  • Step-by-Step Data Recovery with Hetman RAID Recovery
  • How to Safely Recover Data from Disk Images
  • Where Are the User’s Files Actually Stored?
  • RAID Recovery Software: Detailed Comparison

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.

How can the number of concurrent users or clients accessing a NAS Buffalo LinkStation LS-WV2.0TL/R1 device affect data loss risks?

The number of concurrent users or clients accessing a NAS Buffalo LinkStation LS-WV2.0TL/R1 device can potentially affect data loss risks in the following ways:

1. Network congestion: When multiple users or clients simultaneously access the NAS device, it can lead to network congestion. This congestion may result in slower data transfer speeds and increased latency, which can increase the chances of data loss or corruption.
2. Increased disk activity: With more users accessing the NAS device, there will be increased disk activity as files are read, written, or modified. Higher disk activity can put additional stress on the hard drives, potentially leading to mechanical failures or errors that may result in data loss.
3. User errors: More concurrent users mean a higher likelihood of user errors, such as accidental file deletions, overwriting files, or improper configuration changes. These mistakes can result in data loss if proper backup measures are not in place.
4. Security risks: Each additional user or client accessing the NAS device introduces an additional potential security vulnerability. If proper security measures are not implemented, such as strong user authentication, access controls, or encryption, unauthorized access or malicious activities can lead to data loss or compromise.
5. Synchronization issues: If multiple users are simultaneously modifying the same file or folder, synchronization conflicts may occur. These conflicts can lead to data loss or inconsistencies if the NAS device does not handle conflicts properly or if users are not aware of synchronization issues.

To mitigate these risks, it is essential to:

• Implement appropriate access controls and user authentication mechanisms to prevent unauthorized access.
• Regularly backup data on the NAS device to an off-site location or another storage medium to ensure data recovery in case of loss or corruption.
• Monitor and manage network bandwidth to prevent congestion and ensure optimal performance.
• Educate users about best practices for file management, avoiding synchronization conflicts, and the importance of data backup.
• Keep the NAS firmware and software up to date to address any security vulnerabilities or bugs.
• Consider implementing redundancy and fault-tolerant features, such as RAID configurations, to minimize the impact of disk failures.

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

Although the NAS LinkStation LS-WV2.0TL/R1 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.

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   How to Order Remote Data Recovery

Step-by-Step Data Recovery with Hetman RAID Recovery

This program restores data from damaged RAID arrays and is fully compatible with Buffalo LinkStation LS-WV2.0TL/R1. 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.

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How to recover data from a Buffalo

LinkStation LS-WV2.0TL/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;

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.

   

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.

   

Where Are the User’s Files Actually Stored?

The Buffalo LinkStation LS-WV2.0TL/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.

RAID Recovery Software: Detailed Comparison