Best Data Recovery Software for NAS Buffalo TeraStation TS51210RH4812: Comprehensive Guide

Contents

• Why Regular Data Recovery Tools Can’t Restore Files from RAID
• Key Information About the NAS Buffalo TeraStation TS51210RH4812
• 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 conducting regular backups on external storage devices mitigate data loss risks for NAS Buffalo TeraStation TS51210RH4812 devices?

Conducting regular backups on external storage devices can mitigate data loss risks for NAS Buffalo TeraStation TS51210RH4812 devices in the following ways:

1. Redundancy: By backing up data on external storage devices, you create an additional copy of your important files and data. This redundancy ensures that even if the data on your TeraStation gets corrupted, damaged, or lost, you can easily restore it from the backup.
2. Protection against hardware failures: External storage devices, such as external hard drives or network-attached storage (NAS) devices from other manufacturers, provide an extra layer of protection against hardware failures. If your TeraStation encounters a hardware issue, you can still access your data from the backup device.
3. Disaster recovery: In case of a natural disaster, fire, theft, or any other catastrophic event that affects your TeraStation, having backups on external storage devices ensures that your data remains safe and can be easily recovered. Storing backups in a different physical location provides protection against localized incidents.
4. Versioning and historical data: Regular backups allow you to keep multiple versions of your files and data. In case you accidentally delete or overwrite an important file, you can retrieve previous versions from the backup. This feature helps protect against human errors and data corruption.
5. Ransomware protection: Ransomware attacks can encrypt your data and hold it hostage until you pay a ransom. By regularly backing up your data on external storage devices, you can isolate your backups from the network and prevent ransomware from affecting them. In case of an attack, you can restore your data from the backup without paying the ransom.
6. Ease of migration and upgrades: Backing up your data on external storage devices makes it easier to migrate to a new NAS device or upgrade your existing TeraStation. You can quickly transfer your data from the backup to the new device without any data loss or downtime.

It is important to ensure that the external storage devices used for backups are reliable, regularly tested, and kept in a secure location to further mitigate data loss risks.

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

Although the NAS TeraStation TS51210RH4812 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 TeraStation TS51210RH4812. 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

TeraStation TS51210RH4812 has 12 HDD slots, and it supports the following array types:

• RAID 0;
• RAID 1;
• RAID 5;
• RAID 6;
• RAID 50;
• RAID 60;
• 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 TeraStation TS51210RH4812 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