Ultimate Guide to Best Practices for Recovering Data from a Failed NAS Promise Pegasus3 PC Edition R6 RAID Setup

Follow these best practices for recovering data from a failed ⭐ NAS RAID array, focusing on RAID level comprehension, data redundancy, and recovery tool selection.

Ultimate Guide to Best Practices for Recovering Data from a Failed NAS Promise Pegasus3 PC Edition R6 RAID Setup

Promise Pegasus3 PC Edition R6 NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from Pegasus3 PC Edition R6.

Ultimate Guide to Best Practices for Recovering Data from a Failed NAS Promise Pegasus3 PC Edition R6 RAID Setup

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 Promise also introduce some modifications to this process, and that is why data can be written to hard disk in a wide variety of ways.

How does a NAS Promise Pegasus3 PC Edition R6 device store and manage data?

The NAS Promise Pegasus3 PC Edition R6 device uses a RAID (Redundant Array of Independent Disks) configuration to store and manage data. It typically supports RAID levels 0, 1, 5, 6, 10, and JBOD (Just a Bunch of Disks).

In a RAID 0 configuration, the device combines multiple hard drives into a single logical volume, offering increased performance and capacity. However, there is no redundancy, so if one drive fails, data loss may occur.

RAID 1 mirrors the data across multiple drives, providing redundancy. If one drive fails, the data can be recovered from the mirrored drive.

RAID 5 uses striping with distributed parity across multiple drives. It offers both performance and redundancy benefits. If one drive fails, the data can be reconstructed using the parity information stored on the remaining drives.

RAID 6 is similar to RAID 5 but with an additional level of redundancy. It uses double distributed parity, allowing for the simultaneous failure of up to two drives without data loss.

RAID 10 combines mirroring and striping. It requires at least four drives and provides both performance and redundancy benefits.

JBOD simply presents all the drives as individual volumes without any data striping or redundancy.

The Pegasus3 PC Edition R6 device manages the data by distributing it across the drives according to the selected RAID level. It handles data read and write operations, data protection, and ensures data integrity. The device also typically includes management software that allows users to monitor the status of the drives, configure RAID settings, and manage data backups.

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

Although NAS Pegasus3 PC Edition R6 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 Promise Pegasus3 PC Edition R6. 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 Promise

How to recover data from a Promise

Pegasus3 PC Edition R6 has 6 HDD slots, and it supports the following array types:

  • RAID 0;
  • RAID 1;
  • RAID 1E;
  • RAID 3;
  • RAID 5;
  • RAID 6;
  • RAID 30;
  • JBOD;

NAS supports:

  • exFAT, VFAT, FAT 12 / 16 / 32;
  • NTFS / ReFS;
  • APFS / HFS+;
  • Ext2 / 3 / 4 / ReiserFS / XFS / UFS / ZFS / Btrfs;
  • VMFS / HikvisionFS;

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 Promise Pegasus3 PC Edition R6 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.

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 (3)

  • 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 Pegasus3 PC Edition R6, feel free to leave a comment!
  • Taran Glancy
    Taran Glancy 7.09.2023 10:54 #
    Is it necessary to have a backup of the NAS Promise Pegasus3 PC Edition R6 data before attempting data recovery?
    • Hetman Software
      Hetman Software 7.09.2023 10:59 #

      Yes, it is highly recommended to have a backup of your data before attempting data recovery on any storage device, including the NAS Promise Pegasus3 PC Edition R6. Data recovery processes can be complex and there is always a risk of further data loss or damage during the recovery process. Having a backup ensures that you have a copy of your important data in case anything goes wrong during the recovery attempt.

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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

  • Can the NAS Promise Pegasus3 PC Edition R6 be used as a storage solution for iTunes media libraries?

    Yes, the NAS Promise Pegasus3 PC Edition R6 can be used as a storage solution for iTunes media libraries. It provides a large storage capacity and high-speed data transfer, making it suitable for storing and accessing large media libraries. Additionally, it supports various RAID configurations for data protection and can be easily integrated into an existing network setup.

  • What are the steps to set up and configure iTunes to work with the NAS Promise Pegasus3 PC Edition R6?

    To set up and configure iTunes to work with the NAS Promise Pegasus3 PC Edition R6, you can follow these steps:

    1. Connect the Promise Pegasus3 R6 NAS to your computer using the provided Thunderbolt cable.
    2. Turn on the NAS and wait for it to boot up.
    3. Install the Pegasus Utility software on your computer. This software allows you to manage and configure the NAS.
    4. Open the Pegasus Utility software and locate the Pegasus3 R6 NAS in the list of connected devices.
    5. Click on the NAS to select it, and then click on the "Configure" button.
    6. In the configuration settings, navigate to the "Shares" or "Shared Folders" section.
    7. Create a new shared folder specifically for your iTunes library. Give it a name that is easy to identify.
    8. Set the permissions for the shared folder to allow read and write access for all users or specific users.
    9. Once the shared folder is created, open iTunes on your computer.
    10. Go to the "Preferences" menu in iTunes.
    11. In the "Advanced" tab, click on the "Change" button next to the "iTunes Media folder location" option.
    12. Browse and select the shared folder you created on the Pegasus3 R6 NAS.
    13. Click "OK" to save the changes.
    14. iTunes will ask if you want to move your existing media files to the new location. Choose "Yes" if you want to consolidate your media files into the NAS, or "No" if you want to keep them in their current location.
    15. iTunes will now start using the shared folder on the Pegasus3 R6 NAS as the default location for your media files.

    By following these steps, you should be able to set up and configure iTunes to work with the NAS Promise Pegasus3 PC Edition R6.

  • Are there any limitations or compatibility issues when using iTunes with the NAS Promise Pegasus3 PC Edition R6?

    There may be some limitations or compatibility issues when using iTunes with the NAS Promise Pegasus3 PC Edition R6.

    1. iTunes Library Location: By default, iTunes stores its library on the local hard drive of the computer. If you want to store your iTunes library on the Pegasus3 R6, you need to change the library location in iTunes preferences. However, there have been reports of issues with iTunes library performance when stored on a network-attached storage (NAS) device like the Pegasus3 R6. It may lead to slower access times and potential performance issues.
    2. Network Speed and Bandwidth: The performance of iTunes may depend on the network speed and bandwidth available between your computer and the Pegasus3 R6. If your network connection is slow or congested, it could affect the streaming or accessing of media files from the NAS.
    3. File System Compatibility: The Pegasus3 R6 supports various file systems like HFS+, NTFS, and exFAT. However, iTunes library files are primarily designed for macOS, and they use the HFS+ file system. If you are using the Pegasus3 R6 with a Windows computer, you may encounter compatibility issues with the file system. You might need to ensure proper file system compatibility or use third-party software to access the iTunes library on a Windows machine.
    4. iTunes Updates: Occasionally, iTunes updates can introduce changes or compatibility issues with external storage devices. It's important to keep your iTunes software up to date and check for any compatibility notes or updates related to NAS devices like the Pegasus3 R6.

    Overall, while it is possible to use iTunes with the Pegasus3 R6, there may be some limitations and compatibility issues to consider. It's recommended to test the setup and monitor performance to ensure smooth operation.

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