
- Why Regular Data Recovery Tools Can’t Restore Files from RAID
- Key Information About the NAS QNAP Turbo Station TS-859 Pro / TS-859 Pro+
- How to Remove Hard Disks from Your NAS and Connect Them to a PC
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 QNAP 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 best practices for securely storing usernames and passwords on NAS QNAP Turbo Station TS-859 Pro / TS-859 Pro+ devices?
Yes, there are several recommended best practices for securely storing usernames and passwords on NAS QNAP Turbo Station TS-859 Pro / TS-859 Pro+ devices:
- Use strong and unique passwords: Ensure that all usernames and passwords used on the device are strong and unique. Avoid using common or easily guessable passwords.
- Enable two-factor authentication (2FA): QNAP devices typically support 2FA, which adds an extra layer of security by requiring a second verification step, such as a code from a mobile app, in addition to the password.
- Regularly update firmware: Keep the NAS firmware up to date with the latest security patches and updates. This helps protect against known vulnerabilities and ensures the device's security features are up to date.
- Restrict access: Only provide access to authorized users and limit administrative privileges to trusted individuals. Implement user access controls and regularly review user accounts to remove any unnecessary or inactive accounts.
- Use HTTPS for remote access: When accessing the NAS remotely, ensure that you are using HTTPS (secure HTTP) instead of HTTP to encrypt the communication between the device and your remote device.
- Disable unnecessary services: Disable any unnecessary services or features on the NAS to minimize potential attack vectors. Only enable the services that are required for your specific use case.
- Regularly backup data: Implement a regular backup strategy to ensure that critical data stored on the NAS is protected. This can help mitigate the impact of any potential security incidents or data loss.
- Enable network firewall: QNAP devices often have built-in firewall capabilities. Enable the firewall and configure it to allow only necessary network traffic to and from the NAS.
- Enable network encryption: If possible, enable network encryption protocols such as SSL or TLS to encrypt the communication between the NAS and connected devices.
- Regularly review logs: Monitor and review the system logs and event logs on the NAS for any suspicious activities or unauthorized access attempts.
By following these best practices, you can enhance the security of your QNAP Turbo Station TS-859 Pro / TS-859 Pro+ devices and protect the usernames and passwords stored on them.
How to Remove Hard Disks from Your NAS and Connect Them to a PC
Although the NAS Turbo Station TS-859 Pro / TS-859 Pro+ 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:
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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.
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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.
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Label each hard disk according to its position inside the NAS. The order of the drives is crucial for correct RAID reconstruction.
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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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Step-by-Step Data Recovery with Hetman RAID Recovery

This program restores data from damaged RAID arrays and is fully compatible with QNAP Turbo Station TS-859 Pro / TS-859 Pro+. 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.
How to recover data from a QNAP
Turbo Station TS-859 Pro / TS-859 Pro+ has 8 HDD slots, and it supports the following array types:
- RAID 50;
- RAID 60;
- RAID 5;
- RAID 6;
- RAID 10;
- RAID 0;
- RAID 1;
- JBOD;
NAS supports:
- ZFS;
- EXT4;
- EXT3;
- exFAT;
- FAT32 (External Disk Only);
- NTFS (External Disk Only);
- HFS+ (External Disk Read Only);
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:
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Ensure you have enough free space to store the image. Its size will typically match the size of the original disk.
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In the main window, select the target disk and choose Tools - Save Disk. You can also select multiple disks if needed.
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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.

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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 QNAP Turbo Station TS-859 Pro / TS-859 Pro+ network-attached storage keeps QTS (QuTS hero) 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
| Product | Operating system | RAID controller support | Supported file systems | Virtual RAID controller support | Data recovery from damaged RAID | File preview |
|---|---|---|---|---|---|---|
| Hetman RAID Recovery | Windows, Linux, MacOS | Yes, over 100 controllers | FAT, exFAT, NTFS, ReFS, APFS, HFS+, Ext4, Ext3, Ext2, ReiserFS, Btrfs, VMFS, Hikvision, XFS, UFS, ZFS | Yes | Yes | Yes |
| DiskInternals RAID Recovery | Windows | Yes, over 10 controllers | FAT, NTFS, Ext2/3/4, HFS+ | No | Yes | Yes |
| R-Studio | Windows, Mac, Linux | Yes, over 20 controllers | FAT, NTFS, Ext2/3/4, HFS+ | Yes | Yes | Yes |
| UFS Explorer RAID Recovery | Windows, Mac, Linux | Yes, over 100 controllers | FAT, NTFS, Ext2/3/4, HFS+ | Yes | Yes | Yes |
| EaseUS Data Recovery | Windows | Yes, over 20 controllers | FAT, NTFS, Ext2/3/4, HFS+ | No | Yes | Yes |
| ReclaiMe Free RAID Recovery | Windows | Yes, over 100 controllers | FAT, NTFS, Ext2/3/4, HFS+ | Yes | Yes | Yes |


Yes, there are firmware updates and patches recommended for data recovery from NAS QNAP Turbo Station TS-859 Pro / TS-859 Pro+ devices. It is always a good practice to keep your firmware up to date to ensure the best performance and security of your NAS device.
QNAP regularly releases firmware updates and patches to address any known issues, improve functionality, and enhance data recovery capabilities. These updates may include bug fixes, stability improvements, and compatibility enhancements.
To find the latest firmware updates and patches for your specific QNAP Turbo Station model, you can visit the official QNAP website and navigate to the support section. From there, you can search for your model and find the available firmware updates and patches. It is recommended to follow the instructions provided by QNAP to properly update the firmware on your NAS device.
Additionally, QNAP provides a support forum where users can discuss and share information about their QNAP devices, including data recovery tips and techniques. It can be a valuable resource to stay updated on any specific firmware updates or patches that may be recommended for data recovery purposes.
Remember to always backup your important data regularly to minimize the risk of data loss, and consult with QNAP support or a professional data recovery service if you encounter any issues with data recovery from your NAS device.