How to recover data from Synology DiskStation DS715 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 Synology DiskStation DS715

Synology DiskStation DS715 NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from DiskStation DS715.

How to recover data from NAS Synology DiskStation DS715

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 Synology 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 remote access to NAS Synology DiskStation DS715 devices pose additional data loss risks?

Remote access to NAS Synology DiskStation DS715 devices can potentially pose additional data loss risks if proper security measures are not in place. Here are some potential risks:

  1. Unauthorized access: If remote access is not properly secured, it can open up the possibility of unauthorized individuals gaining access to your NAS device. This can result in data theft, deletion, or modification.
  2. Weak passwords: Weak or easily guessable passwords can make it easier for attackers to gain access to your NAS device remotely. It is important to use strong, complex passwords and enable two-factor authentication for added security.
  3. Network vulnerabilities: If your network is not properly secured, it can expose your NAS device to various network-based attacks, such as Man-in-the-Middle attacks or brute-force attempts. Regularly updating your network security measures and using encryption protocols can help mitigate these risks.
  4. Malware and ransomware: Remote access can potentially expose your NAS device to malware or ransomware attacks if the connected device used for remote access is compromised. It is crucial to keep your remote devices, including computers and mobile devices, updated with the latest security patches and use reputable security software.
  5. Data transmission risks: During remote access, data is transmitted over the internet, which can be intercepted or compromised if proper encryption measures are not in place. Using secure protocols such as SSL/TLS and VPN can help protect the data during transmission.

To minimize these risks, it is important to follow best practices for securing remote access to your NAS device, such as enabling firewall rules, using strong passwords, regularly updating firmware, and implementing additional security measures like two-factor authentication.

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

Although NAS DiskStation DS715 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 Synology DiskStation DS715. 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 Synology

How to recover data from a Synology

DiskStation DS715 has 2 HDD slots, and it supports the following array types:

  • Synology Hybrid RAID(SHR);
  • RAID 1;
  • RAID 0;
  • Basic;
  • JBOD;

NAS supports:

  • EXT4;
  • EXT3 (External Disk Only);
  • FAT32 (External Disk Only);
  • NTFS (External Disk Only);
  • HFS+ (External Disk Only);

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 Synology DiskStation DS715 network-attached storage keeps DSM (DiskStation Manager) 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 (1)

  • 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 DiskStation DS715, feel free to leave a comment!
Post comment
Leave a reply
Your email address will not be published. Required fields are marked *

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

  • What are the key features and functionalities available in the web interface of the Synology DiskStation DS715 NAS?

    The web interface of the Synology DiskStation DS715 NAS offers a range of key features and functionalities, including:

    1. Dashboard: Provides an overview of system status, resource usage, and storage capacity.
    2. File Station: Allows users to manage files and folders, including uploading, downloading, copying, moving, and deleting.
    3. Storage Manager: Enables users to create and manage storage volumes, including RAID configurations, disk health monitoring, and expansion options.
    4. Package Center: Offers a wide range of applications that can be installed and run on the NAS, such as media servers, backup solutions, surveillance systems, and more.
    5. Control Panel: Provides access to various system settings, network configurations, user and group management, and security options.
    6. Shared Folder: Allows users to create shared folders and set access permissions for different users or groups.
    7. Cloud Sync: Enables synchronization of files and folders between the NAS and various cloud storage services, such as Dropbox, Google Drive, or Microsoft OneDrive.
    8. Multimedia: Provides media server capabilities, allowing users to stream and access multimedia content on various devices.
    9. Backup & Restore: Offers backup solutions, including local backups, remote backups, and scheduled backups to external drives or cloud storage.
    10. Surveillance Station: Allows users to connect IP cameras to the NAS for video surveillance purposes, with features like live view, recording, and motion detection.
    11. Download Station: Enables users to download files from the internet using protocols like HTTP, FTP, or BitTorrent, with the option to schedule downloads.
    12. Mobile Apps: Synology provides mobile apps for iOS and Android devices, allowing users to access and manage the NAS remotely.

    These are just some of the key features and functionalities available in the web interface of the Synology DiskStation DS715 NAS. The NAS also supports additional features and applications that can be installed from the Package Center based on the user's requirements.

  • How do you access and navigate the web interface of the Synology DiskStation DS715 NAS? Can you provide a step-by-step guide?

    To access and navigate the web interface of the Synology DiskStation DS715 NAS, follow these steps:

    1. Connect your Synology DiskStation DS715 NAS to your network using an Ethernet cable.
    2. Ensure that your computer is connected to the same network as the NAS.
    3. Open a web browser on your computer (e.g., Chrome, Firefox, Safari).
    4. In the address bar of the web browser, type the IP address of your Synology NAS. You can find the IP address by checking the router's connected devices list or using a network scanning tool.

    Example: (replace with the actual IP address of your NAS)

    1. Press Enter or Return to load the web interface login page.
    2. On the login page, enter the username and password for your Synology NAS. By default, the username is "admin," and the password is also "admin."
    3. Click on the "Login" button to access the web interface.

    Once you have logged in, you can navigate the web interface using the following steps:

    1. Dashboard: The dashboard provides an overview of your NAS system, including system status, resource usage, and storage information. You can access it by clicking on the "Dashboard" icon on the top left corner of the interface.
    2. Main Menu: The main menu is located on the left side of the interface and provides access to various features and settings. You can expand or collapse the menu by clicking on the hamburger icon (three horizontal lines) at the top left corner.
    3. Applications: Under the main menu, you will find various applications such as File Station, Control Panel, Package Center, and more. Click on the desired application to access its features and settings.
    4. Settings: To access the settings of the Synology NAS, click on the "Control Panel" application in the main menu. Here, you can configure network settings, user accounts, shared folders, security options, and other system settings.
    5. File Management: To manage files on your NAS, click on the "File Station" application in the main menu. It allows you to browse, upload, download, and organize files and folders on your NAS.
    6. Package Center: The "Package Center" application allows you to install additional applications and services on your NAS, such as media servers, backup utilities, and more. You can access it from the main menu.
    7. Help and Support: If you need assistance or have questions about the Synology NAS, you can access the Help and Support section by clicking on the question mark icon (?) located at the top right corner of the interface. It provides access to user guides, tutorials, and community forums.

    Remember to customize your settings, including changing the default password for security reasons, and explore the various features and applications available in the web interface to fully utilize your Synology DiskStation DS715 NAS.

  • Are there any specific security measures or settings that can be configured through the web interface of the Synology DiskStation DS715 NAS to ensure data protection and network security?

    Yes, there are several security measures and settings that can be configured through the web interface of the Synology DiskStation DS715 NAS to ensure data protection and network security. Here are some important ones:

    1. Enable and enforce strong passwords: Set up a password policy that requires users to create strong passwords with a combination of upper and lowercase letters, numbers, and special characters. Enforcing regular password changes can also enhance security.
    2. Enable two-factor authentication (2FA): Synology NAS supports 2FA, which adds an extra layer of security by requiring users to provide a second verification code, typically generated by a mobile app or received via SMS.
    3. Enable firewall: Synology NAS has a built-in firewall that can be configured to restrict access to specific IP addresses or ranges. Enable the firewall and whitelist only trusted IP addresses to minimize the risk of unauthorized access.
    4. Enable automatic security updates: Keep your NAS up to date with the latest security patches and firmware updates. Enable automatic updates to ensure that you are protected against known vulnerabilities.
    5. Enable network encryption: Use SSL/TLS to encrypt network traffic between your NAS and connected devices. Enable HTTPS for web access and FTPS for file transfers to protect sensitive data in transit.
    6. Enable IP blocking and account protection: Synology NAS has built-in features to protect against brute-force attacks. Enable IP blocking to automatically block IP addresses that repeatedly fail login attempts. You can also configure account protection to temporarily lock out user accounts after a certain number of failed login attempts.
    7. Disable unnecessary services and ports: Review the services and ports enabled on your NAS and disable any that are not required. This reduces the attack surface and minimizes the risk of unauthorized access.
    8. Implement regular backups: Regularly back up your data to an external storage device or cloud storage. In case of data loss or a security breach, having up-to-date backups ensures that you can recover your data without significant loss.

    It is important to regularly review and update these security measures to adapt to changing threats and vulnerabilities. Additionally, consider consulting the official Synology documentation or seeking professional advice for a comprehensive understanding of security best practices for your specific NAS model.

Hello! This is AI-based Hetman Software virtual assistant, and it will answer any of your questions right away.
Start Chat