How to recover data from QNAP Turbo Station TS-639 Pro 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 QNAP Turbo Station TS-639 Pro

QNAP Turbo Station TS-639 Pro NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from Turbo Station TS-639 Pro.

How to recover data from NAS QNAP Turbo Station TS-639 Pro

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 QNAP 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 a failed RAID rebuild process lead to data loss on NAS QNAP Turbo Station TS-639 Pro devices?

Yes, a failed RAID rebuild process can potentially lead to data loss on NAS QNAP Turbo Station TS-639 Pro devices. During a RAID rebuild, the system attempts to restore the data on the failed or replaced hard drive by reconstructing it from the remaining drives in the RAID array. If the rebuild process encounters any errors or issues, it may not be able to successfully rebuild the data, resulting in potential data loss. It is always recommended to have a backup of important data before performing any RAID rebuild or maintenance operations.

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

Although NAS Turbo Station TS-639 Pro 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 QNAP Turbo Station TS-639 Pro. 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.

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How to recover data from a QNAP

How to recover data from a QNAP

Turbo Station TS-639 Pro has 6 HDD slots, and it supports the following array types:

  • RAID 5;
  • RAID 6;
  • RAID 10;
  • RAID 0;
  • RAID 1;
  • JBOD;

NAS supports:

  • ZFS;
  • EXT4;
  • EXT3;
  • FAT32 (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 QNAP Turbo Station TS-639 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.

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

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  • 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 Turbo Station TS-639 Pro, 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 xaker.ru, 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.

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Questions and answers

  • What are the key features and specifications of the QNAP Turbo Station TS-639 Pro that make it suitable for use as a database server?

    The QNAP Turbo Station TS-639 Pro offers several key features and specifications that make it suitable for use as a database server:

    1. High Performance: The TS-639 Pro is powered by a high-performance Intel Atom dual-core processor and has 1GB of DDR2 memory (expandable up to 3GB). This ensures smooth and efficient operation, even when handling complex database queries and transactions.
    2. Large Storage Capacity: The TS-639 Pro supports up to 6 SATA hard drives, allowing for a massive storage capacity of up to 48TB (with 8TB drives). This ample storage space is crucial for storing and managing large databases.
    3. RAID Support: The Turbo Station supports various RAID configurations, including RAID 0, 1, 5, 6, 10, 5+ hot spare, and 6+ hot spare. RAID ensures data redundancy and improves overall system performance, making it ideal for database servers that need high availability and data protection.
    4. Multiple Network Interfaces: The TS-639 Pro offers dual Gigabit Ethernet ports, providing high-speed network connectivity and load balancing/failover support. This allows for efficient data transfer and ensures uninterrupted access to the database server.
    5. Virtualization Support: The Turbo Station supports virtualization technologies such as VMware, Citrix, and Microsoft Hyper-V, allowing you to run multiple virtual machines on a single physical server. This enables you to consolidate database servers and optimize resource utilization.
    6. Backup and Disaster Recovery: QNAP's Turbo Station offers comprehensive backup solutions, including scheduled backups, remote replication, and cloud storage integration. These features ensure data protection and facilitate quick disaster recovery in case of system failures or data corruption.
    7. Scalability: The TS-639 Pro supports expansion units, allowing you to increase storage capacity as your database grows. This scalability feature ensures that your database server can accommodate future data growth without the need for a complete hardware replacement.
    8. Advanced Security: The Turbo Station provides robust security features, including AES 256-bit volume encryption, IP blocking, antivirus protection, and access control. This ensures that your database server and the sensitive data it holds are well-protected against unauthorized access and cyber threats.

    Overall, the QNAP Turbo Station TS-639 Pro offers a combination of high performance, large storage capacity, data protection, scalability, and advanced security features, making it a suitable choice for use as a database server.

  • How does the QNAP Turbo Station TS-639 Pro handle database management tasks, such as data storage, retrieval, and backup?

    The QNAP Turbo Station TS-639 Pro is a network-attached storage (NAS) device that is capable of handling database management tasks efficiently. Here's how it handles data storage, retrieval, and backup:

    1. Data Storage: The TS-639 Pro provides a large storage capacity with its six hard drive bays, allowing you to install multiple hard drives and create a RAID array for data redundancy and improved performance. It supports various RAID levels (RAID 0, 1, 5, 6, 10, 5+hot spare, and 6+hot spare) to suit your needs. This ensures that your database data is securely stored and protected against drive failures.
    2. Data Retrieval: The TS-639 Pro is equipped with a powerful processor and ample memory to handle database queries and data retrieval quickly. It supports multiple file-sharing protocols such as SMB/CIFS, AFP, and NFS, allowing seamless access to the database files from different devices and operating systems. It also supports iSCSI, which enables you to mount the NAS as a virtual disk for direct access to the database files.
    3. Backup: The TS-639 Pro offers various backup options to ensure the safety of your database. It supports scheduled backups to external drives, remote servers, or cloud storage services like Amazon S3, Azure Storage, and Google Cloud Storage. You can also set up real-time remote replication to another QNAP NAS for immediate data backup. Additionally, the NAS supports snapshot technology, allowing you to take point-in-time snapshots of your database for quick recovery in case of data corruption or accidental deletions.

    Overall, the QNAP Turbo Station TS-639 Pro provides robust capabilities for database management tasks, including efficient data storage, fast retrieval, and reliable backup options.

  • Can the QNAP Turbo Station TS-639 Pro support multiple databases and concurrent user access? What are the limitations or considerations for using it in a multi-user database environment?

    Yes, the QNAP Turbo Station TS-639 Pro can support multiple databases and concurrent user access. It is equipped with a powerful Intel Atom processor and up to 4GB of RAM, which allows for efficient multi-user access.

    However, there are some limitations and considerations to keep in mind when using it in a multi-user database environment:

    1. Performance: While the TS-639 Pro is capable of handling multiple databases and concurrent user access, the performance may vary depending on the complexity of the databases and the number of concurrent users. It is recommended to monitor the system resources and consider upgrading the RAM if necessary.
    2. Storage Capacity: The TS-639 Pro comes with six drive bays, allowing for a significant amount of storage capacity. However, in a multi-user database environment, the storage requirements can quickly grow. It is important to plan for sufficient storage capacity and consider expanding the storage by adding additional drives or using expansion units if needed.
    3. Network Bandwidth: In a multi-user database environment, the network bandwidth can become a bottleneck, especially if multiple users are accessing the databases simultaneously. It is advisable to ensure that the network infrastructure can handle the increased traffic and consider using a Gigabit Ethernet connection for optimal performance.
    4. Backup and Recovery: It is crucial to have a robust backup and recovery strategy in place when using the TS-639 Pro in a multi-user database environment. Regularly backing up the databases and implementing a disaster recovery plan can help minimize the risk of data loss.
    5. Database Software Compatibility: The TS-639 Pro supports various database applications, including MySQL, PostgreSQL, and SQLite. However, it is essential to ensure that the specific database software and versions you plan to use are compatible with the NAS device. It is recommended to consult the QNAP website or contact their support for compatibility information.

    Overall, the TS-639 Pro is a capable NAS device for hosting multiple databases and supporting concurrent user access. However, careful planning, monitoring of system resources, and consideration of the mentioned limitations are necessary for optimal performance in a multi-user database environment.

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