Preventing Data Loss on NAS Thecus N12850 and Recovering Deleted Files: Complete Procedure

Implement ⭐ NAS RAID configurations and backup schedules to recover deleted files and prevent data loss.

Preventing Data Loss on NAS Thecus N12850 and Recovering Deleted Files: Complete Procedure

Thecus N12850 NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from N12850.

Preventing Data Loss on NAS Thecus N12850 and Recovering Deleted Files: Complete Procedure

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 Thecus also introduce some modifications to this process, and that is why data can be written to hard disk in a wide variety of ways.

Can the use of specific encryption algorithms or protocols impact data loss risks on NAS Thecus N12850 devices?

Yes, the use of specific encryption algorithms or protocols can impact data loss risks on NAS Thecus N12850 devices. Encryption algorithms and protocols are used to secure data stored on NAS devices, preventing unauthorized access and protecting against data loss.

Using strong encryption algorithms and protocols with robust key management practices can significantly reduce the risk of data loss. These algorithms and protocols should be implemented properly and kept up to date to ensure the highest level of security.

Additionally, encryption can provide an extra layer of protection in case of physical theft or loss of the NAS device. If the encrypted data falls into the wrong hands, it will be difficult or impossible to access without the encryption keys.

It is important to choose encryption algorithms and protocols that are widely recognized and have been thoroughly tested for security vulnerabilities. Regularly updating the firmware and software on the NAS device is also crucial to address any security vulnerabilities that may arise.

Overall, the use of strong encryption algorithms and protocols can greatly enhance the security of data stored on NAS Thecus N12850 devices and reduce the risk of data loss.

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

Although NAS N12850 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 Thecus N12850. 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 Thecus

How to recover data from a Thecus

N12850 has 12 HDD slots, and it supports the following array types:

  • RAID 0;
  • RAID 1;
  • RAID 5;
  • RAID 6;
  • RAID 50;
  • RAID 60;
  • RAID 10;
  • JBOD;

NAS supports:

  • EXT3;
  • EXT4;
  • XFS;

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 Thecus N12850 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 N12850, feel free to leave a comment!
  • Nate Belk
    Nate Belk 13.09.2023 04:46 #
    Can data recovery from a NAS Thecus N12850 device be done remotely?
    • Hetman Software
      Hetman Software 13.09.2023 06:00 #

      Yes, data recovery from a NAS Thecus N12850 device can be done remotely in certain cases. It depends on the specific situation and the capabilities of the device. If the NAS is accessible over the network and the necessary protocols and permissions are in place, it may be possible to remotely recover data from the device. However, it is recommended to consult with a professional data recovery service or contact Thecus support for guidance on the specific steps and requirements for remote data recovery from your NAS device.

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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 key features of the NAS Thecus N12850 that make it suitable for saving video files?

    The key features of the NAS Thecus N12850 that make it suitable for saving video files include:

    1. High storage capacity: The N12850 offers up to 12 bays for hard drives, allowing for a large amount of storage space. This is crucial for storing video files, which can be quite large in size.
    2. High-speed data transfer: The N12850 supports multiple Gigabit Ethernet ports and is equipped with a powerful Intel Xeon processor. This enables fast data transfer speeds, ensuring smooth playback and access to video files.
    3. RAID support: The NAS supports various RAID configurations, including RAID 0, 1, 5, 6, 10, 50, and 60. RAID provides data redundancy and protection against drive failures, ensuring the safety and integrity of video files.
    4. 4K video playback: The N12850 is capable of streaming and playing 4K Ultra HD videos, making it suitable for storing and accessing high-resolution video files.
    5. Scalability: The NAS supports expansion units, allowing for additional storage capacity to be added as needed. This is beneficial for users who anticipate a growing collection of video files.
    6. Backup and synchronization: The N12850 offers various backup options, including scheduled backups, remote replication, and cloud backup. It also supports synchronization with cloud storage services, ensuring data redundancy and easy access to video files.
    7. Multimedia server capabilities: The NAS includes built-in multimedia server applications, such as Plex and DLNA, which make it easy to stream video files to compatible devices like smart TVs, media players, and mobile devices.
    8. User-friendly interface: The N12850 features an intuitive web-based interface, making it easy to set up and manage the NAS. This is particularly useful for users who may not have extensive technical knowledge.

    Overall, the high storage capacity, fast data transfer speeds, RAID support, 4K video playback capability, scalability, backup options, multimedia server capabilities, and user-friendly interface make the NAS Thecus N12850 well-suited for saving and managing video files.

  • How does the NAS Thecus N12850 ensure data security and reliability when storing video files?

    The NAS Thecus N12850 ensures data security and reliability when storing video files through various mechanisms:

    1. RAID Technology: The N12850 supports various RAID configurations like RAID 0, 1, 5, 6, 10, 50, 60, and JBOD. RAID provides data redundancy by distributing data across multiple hard drives, ensuring that even if one drive fails, the data remains intact.
    2. Snapshot Backup: The NAS supports snapshot technology, which captures point-in-time copies of data. This allows users to easily restore files or folders to a previous state in case of accidental deletion or modification.
    3. AES 256-bit Encryption: The N12850 supports hardware-accelerated AES 256-bit encryption. This ensures that data stored on the NAS is encrypted and secure, protecting it from unauthorized access or theft.
    4. Multiple Backup Options: The NAS provides various backup options like remote replication, cloud backup, and USB/eSATA backup. These options allow users to create additional copies of their video files in different locations, safeguarding against data loss due to hardware failure or disasters.
    5. Link Aggregation and Failover: The N12850 supports link aggregation, combining multiple network interfaces for increased bandwidth and reliability. In case of network interface failure, the NAS can automatically switch to an alternate interface, ensuring uninterrupted access to stored video files.
    6. Antivirus Protection: The NAS includes antivirus software that scans files for malware or viruses, preventing them from infecting the stored video files. This helps in maintaining the integrity and security of the data.
    7. User Access Control: The N12850 allows administrators to set granular user access controls, ensuring that only authorized users can access specific video files. This prevents accidental or intentional deletion or modification of important data.

    Overall, the NAS Thecus N12850 employs a combination of RAID technology, encryption, backup options, network redundancy, antivirus protection, and user access controls to ensure the security and reliability of video file storage.

  • Can the NAS Thecus N12850 handle large video files and support high-speed data transfers for efficient storage and retrieval?

    Yes, the NAS Thecus N12850 is designed to handle large video files and support high-speed data transfers for efficient storage and retrieval. It is equipped with a powerful Intel Xeon processor and up to 128GB of DDR4 RAM, which allows for smooth handling of large files and multitasking. Additionally, it supports multiple high-speed connectivity options such as 10GbE, USB 3.0, and SATA 6Gb/s, enabling fast data transfers.

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