RAID Controller Failure on NAS QNAP Turbo Station TS-419U / TS-419U II / TS-419U+: Recovery Steps and Consequences

RAID controller failure on ⭐ NAS: causes, consequences, and how to recover your data effectively.

RAID Controller Failure on NAS QNAP Turbo Station TS-419U / TS-419U II / TS-419U+: Recovery Steps and Consequences

QNAP Turbo Station TS-419U / TS-419U II / TS-419U+ 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-419U / TS-419U II / TS-419U+.

RAID Controller Failure on NAS QNAP Turbo Station TS-419U / TS-419U II / TS-419U+: Recovery Steps and Consequences

RAID Recovery™ 2.6
Recover data from damaged RAID arrays inaccessible from a computer.
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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 the use of specific data compression or deduplication techniques impact the performance and data integrity on NAS QNAP Turbo Station TS-419U / TS-419U II / TS-419U+ devices?

The use of specific data compression or deduplication techniques can indeed impact the performance and data integrity on NAS QNAP Turbo Station TS-419U / TS-419U II / TS-419U+ devices.

Data compression techniques aim to reduce the size of data by removing redundant or repeated information. While this can save storage space, it also requires the NAS device to perform additional processing to compress and decompress the data. This can result in increased CPU usage and potentially slower performance, especially when dealing with large amounts of data or when multiple users are accessing the NAS simultaneously.

Deduplication techniques, on the other hand, identify and eliminate duplicate copies of data, further reducing storage requirements. However, deduplication also requires additional processing power and can impact performance, particularly during the deduplication process itself.

In terms of data integrity, it's important to note that any compression or deduplication technique introduces an additional layer of complexity to the storage system. While these techniques are designed to be reliable, there is always a small risk of data corruption or loss. It is crucial to regularly back up your data and ensure that you have proper disaster recovery measures in place to mitigate any potential risks.

Ultimately, the impact on performance and data integrity will depend on factors such as the specific compression or deduplication techniques used, the amount and type of data being processed, and the overall system configuration and workload. It is recommended to carefully evaluate and test these features in your specific environment to determine the impact they may have on your NAS device.

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

Although NAS Turbo Station TS-419U / TS-419U II / TS-419U+ 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-419U / TS-419U II / TS-419U+. 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 QNAP

How to recover data from a QNAP

Turbo Station TS-419U / TS-419U II / TS-419U+ has 4 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-419U / TS-419U II / TS-419U+ 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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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 Turbo Station TS-419U / TS-419U II / TS-419U+, 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

  • How does RAID technology enhance the data storage capabilities of QNAP Turbo Station TS-419U / TS-419U II / TS-419U+ NAS devices?

    RAID (Redundant Array of Independent Disks) technology enhances the data storage capabilities of QNAP Turbo Station TS-419U / TS-419U II / TS-419U+ NAS devices in several ways:

    1. Data Redundancy: RAID allows for the creation of redundant copies of data across multiple hard drives. This redundancy protects against data loss in case of a hard drive failure. QNAP Turbo Station NAS devices support various RAID levels, such as RAID 1, RAID 5, RAID 6, and RAID 10, which offer different levels of redundancy and performance.
    2. Increased Storage Capacity: By combining multiple hard drives into a single logical unit, RAID technology allows for increased storage capacity. QNAP Turbo Station NAS devices support various RAID configurations, including JBOD (Just a Bunch of Disks), which allows you to combine the storage capacity of multiple drives into a single large volume.
    3. Improved Performance: RAID technology can also enhance the performance of QNAP Turbo Station NAS devices. RAID levels like RAID 0 and RAID 10, which use striping techniques, distribute data across multiple drives, resulting in faster read and write speeds. This is particularly useful for applications that require high-performance data access, such as video editing or database management.
    4. Hot-Swapping and Drive Migration: QNAP Turbo Station NAS devices with RAID support often feature hot-swappable drive bays, allowing you to replace a failed drive without shutting down the system. RAID technology also enables drive migration, which means you can replace smaller drives with larger ones without losing any data or disrupting the system's operation.
    5. Data Protection and Recovery: In case of a hard drive failure, RAID technology helps in data protection and recovery. Depending on the RAID level used, the system can rebuild the data from the remaining drives and restore the redundancy once a new drive is added. This ensures minimal downtime and data loss.

    Overall, RAID technology enhances the data storage capabilities of QNAP Turbo Station NAS devices by providing data redundancy, increased storage capacity, improved performance, hot-swapping and drive migration capabilities, as well as data protection and recovery mechanisms.

  • What RAID levels are supported by QNAP Turbo Station TS-419U / TS-419U II / TS-419U+ NAS devices, and how do they impact data redundancy and performance?

    The QNAP Turbo Station TS-419U / TS-419U II / TS-419U+ NAS devices support the following RAID levels:

    1. RAID 0: This level offers striping without redundancy. It combines multiple drives into a single logical volume, resulting in increased performance and capacity. However, there is no data redundancy, so if one drive fails, all data is lost.
    2. RAID 1: This level provides mirroring without striping. It requires at least two drives, where data is duplicated across drives. In the event of a drive failure, the system can continue to operate with the remaining drive(s), ensuring data redundancy. However, capacity is limited to the size of a single drive.
    3. RAID 5: This level offers striping with distributed parity. It requires a minimum of three drives, where data and parity information are distributed across all drives. In case of a drive failure, the system can rebuild the lost data using the parity information. RAID 5 provides a good balance between performance, capacity, and data redundancy.
    4. RAID 6: This level is similar to RAID 5 but with double distributed parity. It requires a minimum of four drives, allowing for the simultaneous failure of up to two drives without data loss. RAID 6 provides higher data redundancy than RAID 5 but has a slightly lower write performance due to the additional parity calculations.
    5. RAID 10: This level combines mirroring and striping. It requires a minimum of four drives, where data is mirrored across pairs of drives and then striped across the mirrored pairs. RAID 10 offers excellent performance and data redundancy, but it has a higher cost due to the need for more drives.

    The choice of RAID level impacts data redundancy and performance. RAID 0 provides the best performance but no data redundancy, while RAID 1 offers data redundancy at the cost of capacity. RAID 5 and RAID 6 provide a good balance between performance, capacity, and data redundancy. RAID 10 offers both high performance and data redundancy but requires more drives. The selection depends on the specific requirements of the user, such as the importance of data redundancy, performance needs, and available budget.

  • Can the RAID configuration be easily managed and customized on QNAP Turbo Station TS-419U / TS-419U II / TS-419U+ NAS devices, and what are the benefits of using different RAID levels for specific data storage needs?

    Yes, the RAID configuration can be easily managed and customized on QNAP Turbo Station TS-419U, TS-419U II, and TS-419U+ NAS devices. These devices come with a user-friendly web-based interface called QTS, which allows users to easily configure and manage RAID arrays.

    The benefits of using different RAID levels for specific data storage needs are as follows:

    1. RAID 0: This level provides striping without any redundancy. It offers high performance and increased storage capacity, but there is no data protection. If one drive fails, all data in the array is lost.
    2. RAID 1: This level provides mirroring, where data is duplicated across two drives. It offers high data protection as one drive can fail without losing any data. However, it reduces storage capacity by half.
    3. RAID 5: This level provides striping with distributed parity. It offers a good balance between performance, storage capacity, and data protection. It requires a minimum of three drives, and if one drive fails, the data can be rebuilt using parity information.
    4. RAID 6: This level is similar to RAID 5 but with dual distributed parity. It provides higher data protection as it can tolerate the failure of two drives simultaneously. It requires a minimum of four drives.
    5. RAID 10: This level combines RAID 1 and RAID 0. It provides both data mirroring and striping, offering high performance and data protection. It requires a minimum of four drives, and it can tolerate the failure of one drive per mirrored pair.

    By choosing the appropriate RAID level, users can optimize their NAS storage for their specific needs, balancing factors such as performance, data protection, and storage capacity.

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