How to recover data from Netgear ReadyNAS RN516 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 Netgear ReadyNAS RN516

Netgear ReadyNAS RN516 NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from ReadyNAS RN516.

How to recover data from NAS Netgear ReadyNAS RN516

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 Netgear 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 data synchronization or replication mechanisms mitigate data loss risks for NAS Netgear ReadyNAS RN516 devices?

Yes, the use of specific data synchronization or replication mechanisms can mitigate data loss risks for NAS Netgear ReadyNAS RN516 devices. These mechanisms ensure that data is regularly and automatically backed up or replicated to another location or device, reducing the chances of data loss in the event of hardware failure, accidental deletion, or other unforeseen incidents.

Netgear ReadyNAS RN516 devices support various data synchronization and replication features, such as:

  1. RAID (Redundant Array of Independent Disks): RAID configurations can be set up on the ReadyNAS device to provide redundancy and data protection. Different RAID levels, such as RAID 1 (mirroring) or RAID 5 (striping with parity), can be used to protect against drive failures and ensure data availability.
  2. Snapshot Replication: ReadyNAS devices offer snapshot technology, which allows you to take point-in-time copies of your data. These snapshots can be replicated to another ReadyNAS device or an offsite location, providing additional data protection and the ability to recover previous versions of files.
  3. Remote Replication: ReadyNAS devices support remote replication, where data can be automatically replicated to another ReadyNAS device located in a different physical location. This ensures that data is protected in case of a disaster at the primary location.
  4. Cloud Backup: ReadyNAS devices can be integrated with various cloud backup services, allowing you to back up your data to the cloud. This provides an additional layer of protection by storing your data offsite and protecting against local hardware failures or disasters.

By utilizing these data synchronization and replication mechanisms, you can significantly reduce the risk of data loss on Netgear ReadyNAS RN516 devices. It is important to configure and monitor these mechanisms properly to ensure that backups are up to date and data can be easily restored when needed.

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

Although NAS ReadyNAS RN516 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 Netgear ReadyNAS RN516. 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 Netgear

How to recover data from a Netgear

ReadyNAS RN516 has 6 HDD slots, and it supports the following array types:

  • RAID 0;
  • X-RAID;
  • RAID 1;
  • RAID 5;
  • RAID 6;
  • JBOD;

NAS supports:

  • Ext2;
  • Ext3;
  • Ext4;
  • Btrfs;

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 Netgear ReadyNAS RN516 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


We will be happy to answer your questions!

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 ReadyNAS RN516, feel free to leave a comment!
  • Ricky Cotes
    Ricky Cotes 11.09.2023 05:54 #
    Are there any limitations on the size of data that can be recovered from a NAS Netgear ReadyNAS RN516 device?
    • Hetman Software
      Hetman Software 11.09.2023 06:59 #

      Yes, there are limitations on the size of data that can be recovered from a NAS Netgear ReadyNAS RN516 device. The maximum size of data that can be recovered depends on several factors such as the available storage capacity of the device, the file system used, and the configuration settings.

      The Netgear ReadyNAS RN516 device supports various RAID configurations, including RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10. The maximum storage capacity and data recovery capabilities will vary based on the RAID configuration chosen.

      Additionally, the file system used on the ReadyNAS device can also impact the maximum recoverable data size. The ReadyNAS supports multiple file systems, including Btrfs, EXT4, and XFS. Each file system may have different limitations and recovery capabilities.

      It is recommended to consult the Netgear ReadyNAS RN516 documentation or contact Netgear support for specific details on the maximum recoverable data size based on the device's configuration and settings.

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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, 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.


Questions and answers

  • How does the Netgear ReadyNAS RN516 function as a VPN server, and what are its key features and capabilities in this regard?

    The Netgear ReadyNAS RN516 can function as a VPN (Virtual Private Network) server, allowing remote users to securely access the local network resources over the internet. Here are its key features and capabilities in this regard:

    1. VPN Protocols: The ReadyNAS RN516 supports various VPN protocols such as OpenVPN, PPTP (Point-to-Point Tunneling Protocol), and L2TP (Layer 2 Tunneling Protocol). These protocols ensure secure and encrypted communication between the remote user and the local network.
    2. Secure Remote Access: With the VPN server functionality, the ReadyNAS RN516 provides a secure way for remote users to access files, folders, and other resources on the local network. This is particularly useful for remote employees or users who need to access sensitive data securely.
    3. Easy Setup: The ReadyNAS RN516 offers a user-friendly web interface that simplifies the setup and configuration of the VPN server. It provides step-by-step instructions and wizards to guide users through the process.
    4. Multiple Concurrent Connections: The RN516 supports multiple concurrent VPN connections, allowing multiple remote users to connect to the local network simultaneously. This is beneficial for businesses with multiple remote employees or branch offices.
    5. Customizable Security Settings: The ReadyNAS RN516 allows users to customize security settings for the VPN server. Users can configure encryption methods, authentication protocols, and access controls to ensure the highest level of security for remote connections.
    6. Mobile Device Support: The ReadyNAS RN516 is compatible with mobile devices such as smartphones and tablets. It supports VPN client apps available for iOS and Android, enabling secure access to the local network resources from anywhere.
    7. Traffic Routing and Split Tunneling: The RN516 offers advanced features like traffic routing and split tunneling. Traffic routing allows users to specify which network traffic should pass through the VPN server, while split tunneling enables users to access both local and internet resources simultaneously.

    Overall, the Netgear ReadyNAS RN516 provides a robust VPN server functionality with secure remote access, easy setup, customizable security settings, and support for multiple concurrent connections.

  • What are the steps involved in setting up the Netgear ReadyNAS RN516 as a VPN server, and what are the recommended configurations and settings for optimal performance?

    Setting up the Netgear ReadyNAS RN516 as a VPN server involves several steps. Here is a general outline of the process:

    1. Connect the ReadyNAS to your network: Connect the ReadyNAS to your router using an Ethernet cable and ensure it has internet connectivity.
    2. Access the ReadyNAS admin interface: Open a web browser and enter the IP address of the ReadyNAS to access the admin interface.
    3. Configure network settings: In the admin interface, navigate to the "Network" section and configure the IP address settings for the ReadyNAS. Ensure it has a static IP address for reliable VPN access.
    4. Enable VPN service: In the admin interface, go to the "Services" section and enable the VPN service. Choose the appropriate VPN protocol, such as OpenVPN or PPTP, based on your requirements.
    5. Configure VPN settings: Set up the VPN settings, including authentication method (username/password or certificate), encryption, and other parameters. The exact steps may vary depending on the VPN protocol chosen.
    6. Create VPN user accounts: In the admin interface, navigate to the "Users" section and create user accounts for VPN access. Assign appropriate privileges and ensure strong passwords are used.
    7. Configure port forwarding: If your router uses NAT (Network Address Translation), you need to configure port forwarding to allow VPN traffic to reach the ReadyNAS. Consult your router's documentation for instructions on how to set up port forwarding.
    8. Test the VPN connection: Use a VPN client on a remote device to connect to the ReadyNAS VPN server. Ensure the connection is successful and verify that you can access the resources on the ReadyNAS remotely.

    For optimal performance, consider the following recommended configurations and settings:

    1. Use a wired Ethernet connection: Connect the ReadyNAS to the router using a wired Ethernet connection instead of relying on Wi-Fi for faster and more stable network connectivity.
    2. Choose a secure VPN protocol: Select a VPN protocol that offers strong encryption and secure authentication, such as OpenVPN. Avoid using outdated or insecure protocols like PPTP.
    3. Enable hardware acceleration (if available): If your ReadyNAS model supports hardware acceleration for VPN, enable this feature in the admin interface. It can significantly improve VPN performance.
    4. Use strong encryption: Choose a strong encryption algorithm, such as AES-256, for secure VPN communication. However, keep in mind that stronger encryption may impact performance, especially on lower-end models.
    5. Optimize MTU settings: Adjust the Maximum Transmission Unit (MTU) settings on the ReadyNAS and VPN client devices to avoid fragmentation and improve performance. Experiment with different values to find the optimal setting.
    6. Regularly update firmware: Keep the ReadyNAS firmware up to date to ensure you have the latest security patches and performance improvements.

    Note: The specific steps and settings may vary depending on the firmware version and model of your Netgear ReadyNAS RN516. It is recommended to consult the official documentation or Netgear support for detailed instructions tailored to your specific device.

  • What are the advantages and potential use cases of using the Netgear ReadyNAS RN516 as a VPN server, and how does it compare to other similar solutions in terms of security, performance, and ease of use?

    The Netgear ReadyNAS RN516 offers several advantages and potential use cases as a VPN server:

    1. Data Security: The ReadyNAS RN516 provides a secure platform for hosting a VPN server, ensuring that data transmitted between the server and clients is encrypted and protected from unauthorized access.
    2. Remote Access: With the VPN server functionality, you can securely connect to your local network from remote locations. This is particularly useful for employees or individuals who need to access files, applications, or resources on the network while away from the office or home.
    3. Site-to-Site Connectivity: The ReadyNAS RN516 can also be used to establish secure connections between multiple locations, creating a virtual private network (VPN) between different offices or branches. This enables secure communication and resource sharing between sites.
    4. Client Compatibility: The ReadyNAS RN516 supports a wide range of VPN client software, making it compatible with various operating systems and devices such as Windows, macOS, Linux, iOS, and Android. This ensures that users can connect to the VPN server regardless of their preferred platform.
    5. Scalability: The RN516 is designed to handle multiple concurrent VPN connections, making it suitable for small to medium-sized businesses or organizations that require VPN access for multiple users simultaneously.

    In terms of security, the ReadyNAS RN516 offers robust encryption protocols (such as IPSec and SSL/TLS) to secure VPN connections. It also supports features like firewall rules and access controls, further enhancing security.

    Regarding performance, the RN516 is equipped with a powerful processor and ample memory, allowing it to handle VPN traffic efficiently. However, the actual performance may depend on factors such as the number of concurrent connections and the network infrastructure.

    In terms of ease of use, the ReadyNAS RN516 provides a user-friendly web-based interface for configuring and managing the VPN server. Netgear also offers comprehensive documentation and support resources, making it easier for users to set up and maintain the VPN server.

    When comparing the ReadyNAS RN516 to other similar solutions, it is important to consider factors such as the specific requirements, budget, and the level of technical expertise available. There are various VPN server software and hardware options available in the market, each with its own strengths and weaknesses. It is recommended to evaluate multiple solutions, considering factors like security features, performance capabilities, ease of use, and compatibility with existing network infrastructure before making a decision.

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