How to recover data from Idis DR-2516P 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 Idis DR-2516P

Idis DR-2516P NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from DR-2516P.

How to recover data from NAS Idis DR-2516P

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 Idis 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 overheating or improper ventilation cause data loss on NAS Idis DR-2516P devices?

Yes, overheating or improper ventilation can potentially cause data loss on NAS Idis DR-2516P devices. Overheating can lead to various issues such as hard drive failure, data corruption, or even complete system failure. Improper ventilation can prevent effective cooling of the device, which can result in overheating and subsequent data loss. It is important to ensure that NAS devices are placed in well-ventilated areas and that proper cooling mechanisms are in place to prevent such issues.

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

Although NAS DR-2516P 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 Idis DR-2516P. 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.

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How to recover data from a Idis

How to recover data from a Idis

DR-2516P has 2 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;

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 Idis DR-2516P 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 DR-2516P, feel free to leave a comment!
  • Cooper Hinsley
    Cooper Hinsley 26.08.2023 08:40 #
    Are there any specific backup software recommended for data recovery from NAS Idis DR-2516P devices?
    • Hetman Software
      Hetman Software 26.08.2023 09:59 #

      There are several backup software options available that can be used for data recovery from NAS Idis DR-2516P devices. Some popular choices include:

      1. Acronis True Image: This software provides comprehensive backup and recovery solutions for both physical and virtual environments, including NAS devices.
      2. EaseUS Todo Backup: It offers reliable backup and recovery features, including support for NAS devices like the Idis DR-2516P.
      3. NovaBACKUP: This software provides easy-to-use backup and recovery solutions, including support for NAS devices.
      4. Veeam Backup & Replication: It is a powerful backup and recovery solution that supports NAS devices, including Idis DR-2516P.

      It is important to note that the choice of backup software depends on your specific requirements and preferences. It is recommended to evaluate the features and compatibility of each software before making a decision.

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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 and protocols implemented on the NAS Idis DR-2516P to ensure data security?

    The NAS Idis DR-2516P implements several key features and protocols to ensure data security. Some of these features include:

    1. RAID (Redundant Array of Independent Disks): The NAS supports various RAID configurations, such as RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10. RAID provides data redundancy and improves fault tolerance, ensuring that data remains accessible even in case of disk failures.
    2. AES Encryption: The NAS supports AES (Advanced Encryption Standard) encryption, which ensures that data stored on the drives is encrypted and protected from unauthorized access. AES is a widely recognized encryption standard used in many industries.
    3. Access Control: The NAS provides access control mechanisms to manage user permissions and restrict unauthorized access. It allows administrators to create user accounts, assign access rights, and control user privileges, ensuring that only authorized users can access the data.
    4. IP Filtering: The NAS supports IP filtering, which allows administrators to create a whitelist or blacklist of IP addresses. This feature helps in preventing unauthorized access to the NAS by restricting connections from specific IP addresses or ranges.
    5. SSL/TLS: The NAS supports SSL/TLS (Secure Sockets Layer/Transport Layer Security) protocols for secure communication between clients and the NAS. SSL/TLS ensures that data transmitted over the network is encrypted and protected from eavesdropping or tampering.
    6. Antivirus Integration: The NAS can integrate with antivirus software to scan files and folders for malware or viruses. This feature helps in detecting and preventing the spread of malicious files within the NAS storage.
    7. Data Backup and Snapshot: The NAS supports data backup and snapshot features, allowing users to create backups of important data and restore them in case of accidental deletion or data corruption. Snapshots capture the state of the data at a specific point in time, providing a recovery point to roll back to.
    8. Network Protocols: The NAS supports various network protocols like SMB (Server Message Block), NFS (Network File System), FTP (File Transfer Protocol), and SSH (Secure Shell). These protocols ensure secure file sharing and data transfer over the network.
    9. Physical Security: The NAS is designed with physical security features like lockable drive bays and Kensington lock support to prevent unauthorized physical access to the drives and the NAS itself.

    These features and protocols work together to provide a comprehensive data security solution for the NAS Idis DR-2516P, ensuring the confidentiality, integrity, and availability of the stored data.

  • Can you explain the encryption methods used by the NAS Idis DR-2516P to protect data at rest and data in transit?

    The NAS Idis DR-2516P uses several encryption methods to protect data at rest and data in transit.

    For data at rest, the NAS supports disk-level encryption. This means that the data stored on the hard drives within the NAS is encrypted using algorithms such as AES (Advanced Encryption Standard). AES is a widely used and highly secure encryption algorithm. This ensures that even if the hard drives are stolen or physically accessed, the data cannot be read without the encryption key.

    In addition to disk-level encryption, the NAS also supports file-level encryption. This allows users to encrypt specific files or folders within the NAS, providing an extra layer of protection for sensitive data. The encryption algorithms used for file-level encryption may vary depending on the NAS's operating system and software.

    For data in transit, the NAS supports various encryption protocols such as SSL/TLS (Secure Sockets Layer/Transport Layer Security). SSL/TLS encrypts the data transmitted between the NAS and other devices, such as computers or mobile devices, over networks like the internet. This ensures that the data cannot be intercepted or tampered with by unauthorized entities.

    Furthermore, the NAS may also support VPN (Virtual Private Network) protocols, which create a secure and encrypted tunnel for data transmission between remote devices and the NAS. VPNs are commonly used to establish secure connections over public networks, ensuring the confidentiality and integrity of data in transit.

    It's important to note that the specific encryption methods and protocols supported by the NAS Idis DR-2516P may vary depending on the firmware version and configuration settings. It is recommended to consult the NAS's documentation or contact the manufacturer for precise details regarding encryption capabilities.

  • How does the NAS Idis DR-2516P handle user authentication and access control to prevent unauthorized access to sensitive data stored on the device?

    The NAS Idis DR-2516P handles user authentication and access control through various security mechanisms to prevent unauthorized access to sensitive data stored on the device. Here are some of the methods it may employ:

    1. User Accounts: The NAS allows administrators to create individual user accounts with unique login credentials. Each user is assigned specific permissions and access rights to different files, folders, or services on the device.
    2. Password Policies: The NAS typically enforces password policies, such as minimum password length, complexity requirements, and expiration periods. This ensures that users create strong passwords and regularly update them.
    3. Two-Factor Authentication (2FA): The device may support 2FA, which adds an extra layer of security by requiring users to provide a second form of authentication, such as a one-time password or biometric verification, in addition to their regular login credentials.
    4. Role-Based Access Control (RBAC): RBAC allows administrators to assign users to different roles or groups, each with specific access permissions. This simplifies access control management by granting or revoking permissions based on roles rather than individual users.
    5. Access Control Lists (ACLs): The NAS may utilize ACLs to define fine-grained access rules for specific files, folders, or services. Administrators can specify which users or groups have read, write, or execute permissions on a per-resource basis.
    6. IP Whitelisting/Blacklisting: The device may support IP-based access control, allowing administrators to whitelist or blacklist specific IP addresses or ranges. This restricts access to the NAS from unauthorized or suspicious sources.
    7. Audit Logs: The NAS logs all user activities, including login attempts, file access, and configuration changes. These audit logs can be reviewed by administrators to detect any unauthorized access attempts or suspicious behavior.
    8. Encryption: The NAS may offer data encryption capabilities, ensuring that sensitive files stored on the device are protected even if unauthorized access occurs.

    By implementing these security measures, the NAS Idis DR-2516P aims to provide robust user authentication and access control, minimizing the risk of unauthorized access to sensitive data.

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