RAID Array Management for NAS Digiever DS-8464-SRM Pro+ Data Recovery

RAID array recovery tips for ⭐ NAS systems: tools and strategies for seamless data retrieval.

RAID Array Management for NAS Digiever DS-8464-SRM Pro+ Data Recovery

Digiever DS-8464-SRM 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 DS-8464-SRM Pro+.

RAID Array Management for NAS Digiever DS-8464-SRM Pro+ Data Recovery

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 Digiever 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 device firmware rollback or downgrading impact data loss risks for NAS Digiever DS-8464-SRM Pro+ devices?

Rolling back or downgrading the firmware of a NAS device like the Digiever DS-8464-SRM Pro+ can potentially impact data loss risks. Here are a few considerations:

  1. Compatibility: Before attempting a firmware rollback, ensure that the older firmware version is compatible with your NAS device model. Using an incompatible firmware version can lead to system instability or malfunction, potentially resulting in data loss.
  2. Bug Fixes and Security Patches: Firmware updates often include bug fixes, performance improvements, and security patches. By rolling back to an older firmware version, you may lose these important updates, leaving your NAS device vulnerable to security threats or stability issues.
  3. Data Corruption: If the firmware rollback process is not executed correctly, it can lead to data corruption or loss. It is crucial to follow the manufacturer's instructions precisely and ensure that you have a backup of your important data before attempting any firmware changes.
  4. Unsupported Features: Newer firmware versions may introduce additional features or improvements that are not available in older versions. By downgrading the firmware, you may lose access to these features, impacting the functionality and usability of your NAS device.

To minimize the risks associated with firmware rollback, it is recommended to consult the manufacturer's documentation, seek support from their technical team, and backup all critical data before proceeding with any firmware changes.

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

Although NAS DS-8464-SRM 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 Digiever DS-8464-SRM 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.

Go to view
How to recover data from a Digiever

How to recover data from a Digiever

DS-8464-SRM Pro+ has 8 HDD slots, and it supports the following array types:

  • RAID 0;
  • RAID 1;
  • RAID 5;
  • RAID 6;
  • RAID 50;
  • RAID 60;
  • 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 Digiever DS-8464-SRM Pro+ 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 DS-8464-SRM Pro+, feel free to leave a comment!
  • Timmy Tinworth
    Timmy Tinworth 24.08.2023 04:43 #
    Can data recovery from a NAS Digiever DS-8464-SRM Pro+ device be performed if there are issues with the network router or switch?
    • Hetman Software
      Hetman Software 24.08.2023 05:59 #

      Yes, data recovery from a NAS Digiever DS-8464-SRM Pro+ device can still be performed even if there are issues with the network router or switch. The NAS device itself stores the data on its internal hard drives, and it can be accessed directly through its own network interface. Therefore, as long as the NAS device is functioning properly and the hard drives are not damaged, data recovery can be performed even if there are issues with the network router or switch.

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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 measures implemented in the NAS Digiever DS-8464-SRM Pro+ to ensure data security?

    The NAS Digiever DS-8464-SRM Pro+ implements several key features and measures to ensure data security. Some of these include:

    1. RAID Protection: The NAS supports RAID configurations (such as RAID 0, 1, 5, 6, and 10) to provide data redundancy and protect against disk failures. This ensures that even if a disk fails, the data remains accessible and intact.
    2. AES Encryption: The NAS supports AES 256-bit encryption, which secures the data stored on the device. This encryption ensures that even if the physical drives are stolen or accessed by unauthorized individuals, the data remains encrypted and unreadable.
    3. Access Control: The NAS provides comprehensive access control mechanisms, including user and group-based permissions. Administrators can define access rights and restrict access to specific folders or files, ensuring that only authorized individuals can access sensitive data.
    4. IP Access Control: The NAS allows administrators to define IP access control lists, which restrict access to the NAS based on IP addresses or IP ranges. This feature helps prevent unauthorized access attempts from specific IP addresses or networks.
    5. SSL/TLS Support: The NAS supports Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols for secure communication between the NAS and client devices. This ensures that data transmitted over the network is encrypted and protected from eavesdropping or tampering.
    6. Antivirus Integration: The NAS integrates with antivirus software to scan files and folders for malware and viruses. This helps prevent the spread of malicious software and ensures the integrity of stored data.
    7. Data Backup and Snapshot: The NAS supports scheduled data backups and snapshot features. These features allow users to create point-in-time copies of their data, which can be used for data recovery in case of accidental deletion, data corruption, or ransomware attacks.
    8. Two-Factor Authentication (2FA): The NAS supports two-factor authentication, adding an extra layer of security to the login process. Users are required to provide a second form of authentication, such as a unique code generated by a mobile app, in addition to their username and password.
    9. Event Notifications and Logs: The NAS provides event notifications and logs, which allow administrators to monitor and track system activities. This helps in identifying any suspicious or unauthorized access attempts and facilitates timely response and mitigation.

    These features and measures collectively ensure data security by protecting against hardware failures, securing data at rest and in transit, controlling access rights, preventing malware infections, facilitating data recovery, and providing visibility into system activities.

  • How does the NAS Digiever DS-8464-SRM Pro+ protect against unauthorized access and data breaches?

    The NAS Digiever DS-8464-SRM Pro+ incorporates several security measures to protect against unauthorized access and data breaches. Here are some of the key features:

    1. User Authentication: The system supports user authentication through various methods such as local account authentication, LDAP, and Active Directory. This ensures that only authorized users can access the system.
    2. Access Control: The NAS allows administrators to define access control policies, granting or denying access to specific files, folders, or applications based on user roles and permissions. This prevents unauthorized access to sensitive data.
    3. Secure Network Protocols: The device supports secure network protocols like SSL/TLS for encrypted communication between the NAS and client devices. This prevents eavesdropping and unauthorized interception of data during transmission.
    4. Data Encryption: The NAS supports AES 256-bit encryption for data stored on the device. This ensures that even if the physical storage media is compromised, the data remains encrypted and inaccessible without the encryption key.
    5. IP Access Control: Administrators can set up IP access control lists to restrict access to the NAS based on specific IP addresses or ranges. This prevents unauthorized access from external networks.
    6. Two-Factor Authentication (2FA): The NAS supports 2FA, adding an extra layer of security by requiring users to provide a second form of authentication, such as a unique code generated by a mobile app, in addition to their password.
    7. Event Monitoring and Alerts: The NAS has built-in event monitoring capabilities that can detect suspicious activities or unauthorized access attempts. Administrators can set up alerts to be notified in real-time when such events occur.
    8. Firmware Updates and Security Patches: Regular firmware updates and security patches are provided by Digiever to address any potential vulnerabilities and ensure the system is up to date with the latest security measures.

    By combining these security features, the NAS Digiever DS-8464-SRM Pro+ aims to provide robust protection against unauthorized access and data breaches, safeguarding sensitive information stored on the device.

  • Can you explain the backup and disaster recovery capabilities of the NAS Digiever DS-8464-SRM Pro+ to ensure data integrity and protection?

    The Digiever DS-8464-SRM Pro+ is a Network Attached Storage (NAS) device that offers robust backup and disaster recovery capabilities to ensure data integrity and protection. Here's an explanation of its key features:

    1. High Availability (HA): The DS-8464-SRM Pro+ supports HA, which means it can operate in a redundant mode with two NAS units working together. In case one unit fails, the other takes over seamlessly, ensuring continuous data availability.
    2. Snapshot Backup: This NAS device supports snapshot backups, allowing you to capture the state of your data at a specific point in time. Snapshots can be scheduled periodically or triggered manually, providing a quick and efficient way to restore data to a previous state if needed.
    3. Remote Replication: With remote replication, you can create an off-site backup of your data on another DS-8464-SRM Pro+ or compatible NAS device. This feature ensures that even if the primary NAS unit is damaged or destroyed, your data remains safe and accessible from the remote backup location.
    4. Data Deduplication and Compression: The DS-8464-SRM Pro+ uses data deduplication and compression techniques to optimize storage utilization. It eliminates redundant data and compresses files, reducing the storage footprint and improving overall backup and recovery performance.
    5. RAID Support: This NAS device supports various RAID configurations, including RAID 0, 1, 5, 6, 10, 50, and 60. RAID provides data redundancy and protection against drive failures by distributing data across multiple drives. In case of a drive failure, the NAS can rebuild the data from the remaining drives.
    6. Multiple Backup Destinations: The DS-8464-SRM Pro+ allows you to back up your data to multiple destinations simultaneously. You can choose to backup to external USB drives, remote NAS devices, or cloud storage services, ensuring redundancy and flexibility in your backup strategy.
    7. Disaster Recovery Plan: Digiever provides a Disaster Recovery Plan (DRP) software that helps you create a comprehensive and customized plan for recovering from various disaster scenarios. The DRP software guides you through the process of defining backup schedules, remote replication settings, and recovery procedures, ensuring a well-structured and efficient disaster recovery strategy.

    Overall, the Digiever DS-8464-SRM Pro+ offers a range of backup and disaster recovery capabilities, including high availability, snapshot backups, remote replication, data deduplication, RAID support, multiple backup destinations, and a disaster recovery planning tool. These features work together to ensure data integrity, protection, and quick recovery in case of any unforeseen events.

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