Expert Guidance for RAID Array Data Recovery on NAS Raidon Mobile Rack ST2760-S3 Devices

Contents

• Why Regular Data Recovery Tools Can’t Restore Files from RAID
• Key Information About the NAS Raidon Mobile Rack ST2760-S3
• How to Remove Hard Disks from Your NAS and Connect Them to a PC
  • Step-by-Step Data Recovery with Hetman RAID Recovery
  • How to Safely Recover Data from Disk Images
  • Where Are the User’s Files Actually Stored?
  • RAID Recovery Software: Detailed Comparison

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 Raidon 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.

Are there any guidelines for configuring security settings on NAS Raidon Mobile Rack ST2760-S3 devices to prevent unauthorized access and potential data loss?

Yes, there are guidelines for configuring security settings on NAS Raidon Mobile Rack ST2760-S3 devices to prevent unauthorized access and potential data loss. Here are some recommendations:

1. Change the default username and password: The first step is to change the default login credentials for the NAS device. Use a strong and unique password that is not easily guessable.
2. Enable firewall and port forwarding: Configure the built-in firewall on the NAS device to restrict access to only necessary ports. If remote access is required, set up port forwarding only for the required ports and disable unnecessary services.
3. Disable unnecessary services: Disable any unnecessary services or protocols on the NAS device to minimize potential attack vectors. Only enable the services that are needed for your specific use case.
4. Regularly update firmware: Keep the NAS device's firmware up to date by regularly checking for and applying any available updates. Firmware updates often include security patches and bug fixes.
5. Use strong network encryption: Enable SSL/TLS encryption for remote access to the NAS device. This ensures that data transmitted over the network is encrypted and secure.
6. Implement strong user access controls: Create separate user accounts with appropriate access privileges for different users or groups. Only grant necessary permissions to each user to minimize the risk of unauthorized access.
7. Enable two-factor authentication (2FA): Implement two-factor authentication for accessing the NAS device. This adds an extra layer of security by requiring a second verification step, such as a code sent to a mobile device, in addition to the username and password.
8. Regularly backup data: Implement a regular backup strategy to ensure that your data is protected in case of any unforeseen events. This can help mitigate the impact of potential data loss.
9. Physically secure the NAS device: Place the NAS device in a secure location to prevent unauthorized physical access. Consider using a lockable cabinet or rack to protect the device from theft.
10. Monitor and log activity: Enable logging and monitoring features on the NAS device to keep track of any suspicious activity. Regularly review the logs to identify any potential security issues or unauthorized access attempts.

It is important to note that these are general guidelines, and the specific steps may vary depending on the NAS device and its configuration options. Always refer to the manufacturer's documentation and security best practices for your specific device.

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

Although the NAS Mobile Rack ST2760-S3 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.

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   How to Order Remote Data Recovery

Step-by-Step Data Recovery with Hetman RAID Recovery

This program restores data from damaged RAID arrays and is fully compatible with Raidon Mobile Rack ST2760-S3. 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.

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How to recover data from a Raidon

Mobile Rack ST2760-S3 has 2 HDD slots, and it supports the following array types:

• RAID 0;
• RAID 1;
• JBOD;

NAS supports:

• APFS / HFS+;
• Ext2 / Ext3 / Ext4;

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.

   

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.

   

Where Are the User’s Files Actually Stored?

The Raidon Mobile Rack ST2760-S3 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