How to recover data from Synology SA3200D 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 SA3200D

Synology SA3200D NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from SA3200D.

How to recover data from NAS Synology SA3200D

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 the use of redundant power supplies reduce the chances of data loss on NAS Synology SA3200D devices?

Yes, the use of redundant power supplies can help reduce the chances of data loss on NAS Synology SA3200D devices. Redundant power supplies provide a backup power source in case one power supply fails, ensuring continuous power to the device. This helps prevent sudden shutdowns or power outages that could result in data loss or corruption. By having redundant power supplies, the NAS device remains operational even if one power supply fails, increasing the overall reliability and reducing the risk of data loss.

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

Although NAS SA3200D 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 SA3200D. 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

SA3200D has 12 HDD slots, and it supports the following array types:

  • Synology Hybrid RAID (SHR);
  • RAID 6;
  • RAID 5;
  • RAID 10;
  • RAID 1;
  • RAID 0;
  • Basic;
  • JBOD;

NAS supports:

  • Btrfs;
  • EXT4;
  • EXT3 (External Disk Only);
  • FAT32 (External Disk Only);
  • exFAT (External Disk Only);
  • NTFS (External Disk Only);
  • HFS+ (External Disk Read 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 SA3200D 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 SA3200D, feel free to leave a comment!
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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

  • What are the steps involved in setting up remote access to files on the NAS Synology SA3200D?

    To set up remote access to files on the NAS Synology SA3200D, follow these steps:

    1. Connect your NAS to the network: Ensure that your NAS is properly connected to your local network using an Ethernet cable.
    2. Configure network settings: Access the NAS administration interface by entering its IP address in a web browser. Go to the Control Panel and navigate to the Network section. Set up the network settings, including IP address, subnet mask, gateway, and DNS server.
    3. Enable File Services: In the Control Panel, go to File Services and enable the necessary protocols such as SMB (Windows file sharing), AFP (Apple File Protocol), or NFS (Network File System) depending on your requirements.
    4. Create shared folders: In the Control Panel, go to Shared Folder and create folders that you want to remotely access. Assign appropriate permissions to users or groups.
    5. Set up user accounts: In the Control Panel, go to User & Group and create user accounts with their respective passwords. Assign appropriate permissions to these accounts for accessing the shared folders.
    6. Enable QuickConnect or Dynamic DNS: Synology offers a feature called QuickConnect that simplifies remote access. Enable QuickConnect in the Control Panel and create a unique QuickConnect ID. Alternatively, you can set up a Dynamic DNS service if you have a registered domain name.
    7. Configure router settings: If you are accessing the NAS remotely over the internet, you need to configure your router to forward the necessary ports to the NAS. Refer to your router's documentation for instructions on port forwarding.
    8. Set up remote access applications: Synology provides various remote access applications like Synology Drive, Synology File Station, or FTP. Install and configure the desired application on your computer or mobile device.
    9. Access files remotely: Using the QuickConnect ID or Dynamic DNS address, access the NAS remotely through the configured remote access application. Enter your NAS username and password to authenticate and access your files.

    Note: It is important to ensure that your NAS is secure by using strong passwords, enabling firewall settings, and keeping the firmware up to date.

  • What security measures should be taken when accessing files on the NAS Synology SA3200D from a remote location?

    When accessing files on the NAS Synology SA3200D from a remote location, several security measures should be taken to ensure the safety and integrity of the data. Here are some recommended security measures:

    1. Enable HTTPS: Use HTTPS (HTTP over SSL/TLS) to encrypt the communication between your remote device and the NAS. This prevents eavesdropping and ensures secure transmission of data.
    2. Set up a VPN: Establish a Virtual Private Network (VPN) connection to access the NAS remotely. VPNs provide a secure and encrypted tunnel for data transmission, protecting it from unauthorized access.
    3. Enable Two-Factor Authentication (2FA): Implement 2FA for remote access. This adds an extra layer of security by requiring a second verification step, such as a code generated on a mobile device, in addition to the username and password.
    4. Use a strong password: Set a strong, unique password for accessing the NAS. Avoid using common or easily guessable passwords. Consider using a password manager to generate and store complex passwords securely.
    5. Regularly update firmware: Keep the NAS firmware up to date with the latest security patches and bug fixes. Synology regularly releases updates to address vulnerabilities and improve security.
    6. Enable firewall and IP blocking: Configure the NAS firewall to restrict access from unauthorized IP addresses. Enable IP blocking to automatically block repeated failed login attempts.
    7. Restrict access permissions: Set appropriate access permissions for different users and groups. Only grant access to the necessary files and folders, limiting exposure to potential security risks.
    8. Enable network encryption: Utilize network encryption protocols like WPA2 or WPA3 for the Wi-Fi network used to access the NAS remotely. This ensures that the network traffic is encrypted and secure.
    9. Regularly backup data: Implement a backup strategy to regularly back up the data on the NAS. This protects against data loss due to accidental deletion, hardware failure, or security breaches.
    10. Monitor and log activity: Enable logging and monitoring features on the NAS to track any suspicious activities or unauthorized access attempts. Regularly review the logs to identify and mitigate potential security threats.

    By implementing these security measures, you can enhance the protection of your data when accessing files on the NAS Synology SA3200D from a remote location.

  • Are there any limitations or considerations to keep in mind when accessing files on the NAS Synology SA3200D remotely, such as bandwidth or connectivity requirements?

    When accessing files on the NAS Synology SA3200D remotely, there are a few limitations and considerations to keep in mind:

    1. Bandwidth: The speed and quality of your internet connection will directly affect the performance of remote file access. If you have a slow or unstable connection, accessing large files or streaming media from the NAS may be slower or may experience buffering issues.
    2. Upload and Download Speeds: Both the upload speed of your local network and the download speed of the remote network will impact file access. If either of these speeds is limited, it can affect the overall performance.
    3. Network Latency: The distance between your remote location and the NAS can introduce latency, which can cause delays in file access. This latency can be more noticeable when transferring large files or performing real-time tasks.
    4. Port Forwarding and Firewall Configuration: To access the NAS remotely, you may need to configure port forwarding on your router and ensure that the necessary ports are open. Firewall settings on both ends should also be configured to allow access to the NAS.
    5. Security: Remote file access involves transmitting data over the internet, which can introduce security risks. It is crucial to use secure protocols such as HTTPS or VPN to protect your data during transmission. Additionally, ensure that your NAS firmware is up to date to address any security vulnerabilities.
    6. Power and Connectivity: The NAS needs to have a stable power supply and a reliable internet connection to be accessible remotely. Power outages or internet disruptions may result in temporary unavailability of the NAS for remote access.
    7. Concurrent Connections: The NAS may have limitations on the number of concurrent connections it can handle. If multiple users are accessing files remotely simultaneously, it can affect performance.
    8. NAS Configuration: Properly configuring the NAS for remote access is essential. This includes setting up user accounts, permissions, and access controls to ensure secure and controlled file access.

    It is recommended to consider these limitations and requirements to ensure a smooth and reliable remote file access experience with the Synology SA3200D NAS.

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