NAS Idis DR-4216P RAID Array Recovery: Handling Faulty Drives

Has your NAS Idis DR-4216P suddenly lost its network drive and you’re unsure what to do next? Did the RAID array collapse, making your files inaccessible? Is the device throwing errors during startup? Perhaps you accidentally rebuilt the RAID array or several hard drives failed at the same time?

NAS Idis DR-4216P RAID Array Recovery: Handling Faulty Drives

Idis DR-4216P NAS Data Recovery in 2025

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from an DR-4216P. We’ll walk through the most common causes of failure and demonstrate proven methods to restore files from a lost or degraded RAID array.

NAS Idis DR-4216P RAID Array Recovery: Handling Faulty Drives

RAID Recovery™ 2.8
Recover data from damaged RAID arrays inaccessible from a computer.
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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 Idis 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.

Can power outages or surges affect data stored in NAS Idis DR-4216P devices?

Yes, power outages or surges can potentially affect the data stored in NAS (Network Attached Storage) devices such as the IDIS DR-4216P.

Power outages can cause the NAS device to abruptly shut down, which may lead to data corruption or loss if the device is not properly configured to handle sudden power loss. It is important to ensure that the NAS device has a reliable power backup solution such as an uninterruptible power supply (UPS) to provide temporary power during outages and allow for a proper shutdown.

Power surges, on the other hand, can occur when there is a sudden increase in voltage, which can damage the electronic components of the NAS device, including the storage drives. This can potentially result in data loss or device malfunction.

To protect the data stored in NAS devices from power-related issues, it is advisable to implement appropriate power management measures such as using a UPS, surge protectors, or voltage regulators. Additionally, regularly backing up the data stored on the NAS to an external storage or cloud-based solution is recommended as a precautionary measure.

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

Although the NAS DR-4216P 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.

    Go to view
    How to Order Remote Data Recovery

    How to Order Remote Data Recovery

Step-by-Step Data Recovery with Hetman RAID Recovery

Hetman Raid Recovery

This program restores data from damaged RAID arrays and is fully compatible with Idis DR-4216P. 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.

Go to view
How to recover data from a Idis

How to recover data from a Idis

DR-4216P has 4 HDD slots, and it supports the following array types:

  • RAID 0;
  • RAID 1;
  • RAID 5;
  • RAID 6;
  • 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.

    Hetman RAID Recovery: Image Creation Wizard
  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.

    Hetman RAID Recovery: Choose a disk or save the image via FTP

Where Are the User’s Files Actually Stored?

The Idis DR-4216P 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

Product Operating system RAID controller support Supported file systems Virtual RAID controller support Data recovery from damaged RAID File preview
Hetman RAID Recovery Windows, Linux, MacOS Yes, over 100 controllers FAT, exFAT, NTFS, ReFS, APFS, HFS+, Ext4, Ext3, Ext2, ReiserFS, Btrfs, VMFS, Hikvision, XFS, UFS, ZFS Yes Yes Yes
DiskInternals RAID Recovery Windows Yes, over 10 controllers FAT, NTFS, Ext2/3/4, HFS+ No Yes Yes
R-Studio Windows, Mac, Linux Yes, over 20 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes
UFS Explorer RAID Recovery Windows, Mac, Linux Yes, over 100 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes
EaseUS Data Recovery Windows Yes, over 20 controllers FAT, NTFS, Ext2/3/4, HFS+ No Yes Yes
ReclaiMe Free RAID Recovery Windows Yes, over 100 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes

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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 DR-4216P, feel free to leave a comment!
  • Dougie Baker
    Dougie Baker 26.08.2023 15:57 #
    Is it possible to recover data from a NAS Idis DR-4216P device that has been affected by a network attack or intrusion?
    • Hetman Software
      Hetman Software 26.08.2023 17:00 #

      Recovering data from a NAS device that has been affected by a network attack or intrusion is possible, but it can be a complex and challenging process. Here are some steps you can take:

      1. Disconnect the affected NAS device from the network immediately to prevent further damage or data loss.
      2. Contact a professional data recovery service that specializes in NAS devices and has experience dealing with network attacks. They will have the necessary expertise and tools to recover data from compromised systems.
      3. Provide the data recovery service with all the relevant information about the attack, including the type of attack, any error messages, or symptoms observed.
      4. If possible, provide the data recovery service with any backup copies of your data that were not affected by the attack. This can help in the recovery process.
      5. Work closely with the data recovery service to provide any additional information or access they may require to recover the data.
      6. Once the data is recovered, take steps to secure your network and NAS device to prevent future attacks. This may involve updating firmware, changing passwords, or implementing additional security measures.

      It's important to note that the success of data recovery depends on various factors, including the severity of the attack and the extent of the damage caused. It's always recommended to consult with a professional data recovery service for the best chances of recovering your data.

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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 steps to remotely access files on the NAS Idis DR-4216P from a different location?

    To remotely access files on the NAS Idis DR-4216P from a different location, you can follow these steps:

    1. Ensure the NAS is connected to the internet: Make sure the NAS is connected to the internet either through a wired or wireless connection.
    2. Configure the NAS settings: Access the NAS settings by entering the NAS IP address in a web browser. Login using the administrator credentials provided by the manufacturer.
    3. Enable remote access: In the NAS settings, locate the remote access or cloud service section. Enable remote access by following the instructions provided by the manufacturer. This may involve creating an account with the manufacturer's cloud service.
    4. Configure port forwarding: In your router settings, configure port forwarding to allow access to the NAS from outside your local network. Consult the router's manual or manufacturer's instructions for guidance on how to set up port forwarding.
    5. Obtain the external IP address: Find out the external IP address of the network where the NAS is located. You can use websites like "whatismyip.com" to retrieve this information.
    6. Connect to the NAS remotely: On a different location, open a web browser or use the manufacturer's software to access the NAS remotely. Enter the external IP address obtained in the previous step, along with the appropriate login credentials.
    7. Access files: Once connected, you should be able to browse and access the files stored on the NAS remotely. Use the file management interface provided by the manufacturer to navigate and download/upload files as needed.

    Note: The specific steps may vary slightly depending on the NAS model and manufacturer. It's recommended to refer to the user manual or support documentation provided by Idis for detailed instructions tailored to your specific device.

  • What are the security measures in place to ensure the safe and secure access of files on the NAS Idis DR-4216P from a remote location?

    The NAS Idis DR-4216P has several security measures in place to ensure safe and secure access to files from a remote location. Some of these measures include:

    1. User authentication: The NAS requires users to authenticate themselves before accessing files remotely. This can be done through various methods such as username/password, two-factor authentication, or biometric authentication.
    2. Secure remote access protocols: The NAS supports secure protocols such as SSL (Secure Sockets Layer) and TLS (Transport Layer Security) for remote access. These protocols encrypt the data transmitted between the remote device and the NAS, ensuring that it cannot be intercepted or tampered with.
    3. VPN support: The NAS may support Virtual Private Network (VPN) technology, allowing remote users to establish a secure and encrypted connection to the local network where the NAS is located. This adds an extra layer of security by creating a private and secure channel for accessing the files.
    4. Firewall and network security: The NAS may have built-in firewall capabilities to protect against unauthorized access attempts. It can also support other network security measures such as IP filtering, blocking specific IP addresses or ranges, and intrusion detection/prevention systems.
    5. Access control and permissions: The NAS provides granular control over access to files and folders, allowing administrators to set permissions for individual users or user groups. This ensures that only authorized users can access specific files or directories remotely.
    6. Data encryption: The NAS may support data encryption at rest, meaning that the files stored on the NAS are encrypted using strong encryption algorithms. This protects the data even if the physical drives or the NAS device itself are stolen.
    7. Auditing and logging: The NAS may keep logs of all remote access activities, including login attempts, file access, and modifications. These logs can be used for auditing and monitoring purposes, helping to identify any suspicious or unauthorized activities.

    It's important to note that the specific security measures available may vary depending on the firmware version and configuration of the NAS. It's recommended to consult the product documentation or contact the manufacturer for detailed information on the security features of the NAS Idis DR-4216P.

  • Are there any limitations or restrictions when accessing files on the NAS Idis DR-4216P remotely, and how can they be overcome?

    Yes, there may be limitations or restrictions when accessing files on the NAS Idis DR-4216P remotely. Some possible limitations and their solutions include:

    1. Network Configuration: Ensure that the NAS is properly configured for remote access. Check if the necessary ports are open on the router/firewall and that the NAS has a static IP address.
    2. User Permissions: The NAS may have specific user permissions set up, which restrict access to certain files or folders. Ensure that the remote user has appropriate permissions to access the desired files.
    3. VPN or Remote Access Setup: If the NAS is located on a different network, you may need to set up a Virtual Private Network (VPN) to securely access the files. Consult the NAS documentation or support for guidance on setting up VPN or remote access.
    4. Internet Connection Speed: Remote access performance may be limited by the internet connection speed. If the connection is slow, transferring large files may take a long time. Consider upgrading the internet connection or optimizing the network for better performance.
    5. Firewall or Antivirus Software: Sometimes, firewall or antivirus software on the remote computer can block access to the NAS. Ensure that the necessary exceptions or rules are set up in the software to allow remote access.
    6. Firmware and Software Updates: Keep the NAS firmware and any associated software up to date to ensure compatibility and access improvements. Check for any available updates from the manufacturer's website or through the NAS administration interface.

    If you encounter specific issues or limitations, it is recommended to consult the NAS documentation or contact the manufacturer's support for further assistance.