How to recover data from Digiever DS-16542-RM Pro+ 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 Digiever DS-16542-RM Pro+
Data Recovery Tool

Digiever DS-16542-RM Pro+ NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from DS-16542-RM Pro+.

How to recover data from NAS Digiever DS-16542-RM Pro+

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 Digiever 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 natural disasters such as floods or fires result in data loss for NAS Digiever DS-16542-RM Pro+ devices?

Yes, natural disasters such as floods or fires can result in data loss for NAS Digiever DS-16542-RM Pro+ devices. These devices store data on hard drives, and if they are exposed to water or fire, the physical damage can lead to data loss. Additionally, power outages or electrical surges caused by natural disasters can also cause data corruption or loss. It is important to have proper backup and disaster recovery plans in place to mitigate the risk of data loss in such situations.

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

Although NAS DS-16542-RM Pro+ 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 Digiever DS-16542-RM Pro+. 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 Digiever

How to recover data from a Digiever

DS-16542-RM Pro+ has 16 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;

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 Tools – Save 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 Digiever DS-16542-RM Pro+ 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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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 DS-16542-RM Pro+, feel free to leave a comment!
    Reply
  • Jeremy Herle
    Jeremy Herle 23.08.2023 18:44 #
    Can data recovery from a NAS Digiever DS-16542-RM Pro+ device be performed if there are issues with the disk array or storage pool?
    Reply
    • Hetman Software
      Hetman Software 23.08.2023 19:00 #

      Data recovery from a NAS device like Digiever DS-16542-RM Pro+ can be challenging if there are issues with the disk array or storage pool. However, it is not impossible to recover data in such situations. Here are a few steps you can take:

      1. Identify the issue: Determine the specific problem with the disk array or storage pool. This could be due to hardware failure, software corruption, or other issues.
      2. Contact professional data recovery services: It is recommended to reach out to professional data recovery services that specialize in NAS devices. They have the expertise and tools required to handle complex data recovery scenarios.
      3. Provide necessary information: Provide the data recovery service with all the relevant details about your Digiever DS-16542-RM Pro+ device, including the model, configuration, and the specific issue you are facing. This will help them assess the situation and provide appropriate solutions.
      4. Follow the instructions: The data recovery service will guide you through the necessary steps to safely remove the affected drives or troubleshoot the storage pool. It is crucial to follow their instructions carefully to avoid further data loss or damage.
      5. Leave it to the professionals: Once you have handed over the drives or allowed the data recovery service to access your NAS device remotely, they will use specialized tools and techniques to recover the data. This process may take some time depending on the complexity of the issue and the amount of data involved.

      Remember, it is always recommended to have a backup of your important data to avoid such situations. Regularly backing up your NAS device can help minimize the impact of data loss and simplify the recovery process.

      Reply
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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 settings and configurations available on the Digiever DS-16542-RM Pro+ NAS device?

    The Digiever DS-16542-RM Pro+ NAS device offers a range of key settings and configurations, including:

    1. RAID Configuration: The NAS device supports various RAID levels such as RAID 0, 1, 5, 6, 10, 50, and 60. Users can configure the RAID level based on their storage requirements and data redundancy needs.
    2. Network Settings: Users can configure network settings such as IP address, subnet mask, gateway, DNS server, and port settings. These settings allow the NAS device to connect to the local network and the internet.
    3. User and Group Management: The device provides user and group management features, allowing administrators to create and manage user accounts and groups. This enables access control and permission settings for different users and groups.
    4. File Sharing: The NAS device supports various file sharing protocols such as SMB/CIFS, NFS, FTP, and WebDAV. Users can configure file sharing settings to enable access to files and folders over the network.
    5. Backup and Replication: The device supports backup and replication features, allowing users to schedule automatic backups of data to external storage devices or remote NAS devices. It also supports data synchronization between multiple NAS devices.
    6. Access Control: The NAS device offers access control settings, including IP access control lists (ACLs) and firewall settings. These settings allow administrators to restrict or allow access to the NAS device based on IP addresses or ranges.
    7. Storage Management: The device provides storage management features such as disk management, volume management, and iSCSI settings. Users can configure storage-related settings to optimize storage capacity and performance.
    8. Notifications and Alerts: The NAS device supports email notifications and alerts for various events such as system errors, disk failures, or backup completion. Users can configure email settings to receive notifications and stay informed about the NAS device's status.
    9. System Management: The device offers system management settings, including firmware updates, system logs, time settings, and SNMP settings. These settings allow administrators to monitor and manage the NAS device effectively.
    10. Mobile Apps and Remote Access: Digiever provides mobile apps for iOS and Android devices, allowing users to access and manage the NAS device remotely. Users can configure remote access settings to securely access files and manage the NAS device from anywhere.

    It's important to note that the available settings and configurations may vary depending on the specific model and firmware version of the Digiever DS-16542-RM Pro+ NAS device.

  • How can I customize the network settings on the Digiever DS-16542-RM Pro+ NAS to optimize data transfer speeds?

    To customize the network settings on the Digiever DS-16542-RM Pro+ NAS for optimizing data transfer speeds, you can follow these steps:

    1. Connect to the NAS: Use a computer connected to the same network as the NAS and open a web browser. Enter the IP address of the NAS to access its web interface.
    2. Login to the NAS: Enter your username and password to log in to the NAS web interface.
    3. Network Settings: Navigate to the "Network" or "Network Settings" section in the NAS web interface.
    4. Link Aggregation: If your NAS supports link aggregation (combining multiple network connections for increased bandwidth), enable it and configure the desired settings. This will require connecting the NAS to a compatible switch/router that supports link aggregation.
    5. Network Speed: Check the network speed settings and ensure it is set to the maximum available speed. It can be set to Auto Negotiation or manually set to the highest speed supported by your network infrastructure (e.g., 1Gbps or 10Gbps).
    6. Jumbo Frames: If your network infrastructure supports jumbo frames, you can enable it on the NAS. Jumbo frames allow larger data packets to be transferred, reducing the overhead and potentially improving data transfer speeds. Set the MTU (Maximum Transmission Unit) to the appropriate value supported by your network equipment (e.g., 9000).
    7. Quality of Service (QoS): Some NAS models have QoS settings that can prioritize certain types of traffic over others. If available, configure QoS to prioritize network traffic related to data transfers.
    8. Network Port Configuration: If your NAS has multiple network ports, you can configure them for different purposes. For example, you can dedicate one port for data transfer and another for management. Configure the ports based on your specific requirements.
    9. Firewall and Port Forwarding: Ensure that any firewall settings or port forwarding rules on your network/router do not restrict or limit the NAS's network traffic.
    10. Test and Monitor: After making the changes, perform speed tests and monitor the data transfer speeds to ensure the desired optimization has been achieved.

    Note: The specific steps may vary slightly based on the firmware version and interface of your Digiever DS-16542-RM Pro+ NAS. It is recommended to refer to the user manual or contact Digiever support for detailed instructions specific to your NAS model.
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