Expert Methods for RAID Array Data Recovery on NAS Raidon Mobile Rack iT2771-S3 Devices

Contents

• Why Regular Data Recovery Tools Can’t Restore Files from RAID
• Key Information About the NAS Raidon Mobile Rack iT2771-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 recommended practices for protecting NAS Raidon Mobile Rack iT2771-S3 devices against physical theft or unauthorized access that can lead to data loss?

Yes, there are several recommended practices for protecting NAS Raidon Mobile Rack iT2771-S3 devices against physical theft or unauthorized access that can lead to data loss. Here are some of them:

1. Physical Security: Ensure that the NAS device is placed in a secure location, preferably in a locked room or cabinet. Limit physical access to authorized personnel only.
2. Strong Passwords: Set strong and unique passwords for the NAS device's admin account and user accounts. Avoid using default or easily guessable passwords.
3. Two-Factor Authentication (2FA): Enable two-factor authentication if supported by the NAS device. This adds an extra layer of security by requiring a second form of authentication, such as a code from a mobile app or a physical token.
4. Firmware Updates: Regularly update the firmware of the NAS device to ensure that any known vulnerabilities are patched. Check for updates from the manufacturer's website or use the built-in update feature if available.
5. Network Segmentation: Consider placing the NAS device on a separate network segment or VLAN to isolate it from the rest of the network. This can help prevent unauthorized access from other devices on the network.
6. Encryption: Enable encryption on the NAS device to protect the data stored on it. This ensures that even if the device is stolen, the data remains encrypted and unreadable without the encryption key.
7. Regular Backups: Implement a regular backup strategy to ensure that important data is backed up and can be restored in case of theft or data loss. Store backups in a separate location or use cloud-based backup solutions.
8. Disable Unused Services: Disable any unused services or features on the NAS device to reduce the attack surface. Only enable necessary services and protocols.
9. Security Auditing: Regularly review the NAS device's logs and security audit trails for any suspicious activity or unauthorized access attempts. This can help identify potential security breaches or vulnerabilities.
10. Employee Training: Educate employees about the importance of physical security and the risks associated with unauthorized access or theft of the NAS device. Train them on best practices for password management and data protection.

By implementing these recommended practices, you can significantly reduce the risk of physical theft or unauthorized access leading to data loss on NAS Raidon Mobile Rack iT2771-S3 devices.

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

Although the NAS Mobile Rack iT2771-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 iT2771-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 iT2771-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 iT2771-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