RAID Controller Failure on NAS Synology RackStation RS2212RP+ / RS2212+: Recovery Plans and Data Recovery Tips

Has your NAS Synology RackStation RS2212RP+ / RS2212+ suddenly lost its network drive and you’re unsure what to do next? Did the RAID array collapse, making your files inaccessible? Is the device throwing errors during startup? Perhaps you accidentally rebuilt the RAID array or several hard drives failed at the same time?

RAID Controller Failure on NAS Synology RackStation RS2212RP+ / RS2212+: Recovery Plans and Data Recovery Tips

Synology RackStation RS2212RP+ / RS2212+ NAS Data Recovery in 2025

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from an RackStation RS2212RP+ / RS2212+. We’ll walk through the most common causes of failure and demonstrate proven methods to restore files from a lost or degraded RAID array.

RAID Controller Failure on NAS Synology RackStation RS2212RP+ / RS2212+: Recovery Plans and Data Recovery Tips

RAID Recovery™ 2.8
Recover data from damaged RAID arrays inaccessible from a computer.
Download

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 Synology 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.

Can the use of multiple NAS Synology RackStation RS2212RP+ / RS2212+ devices in a backup or replication configuration mitigate data loss risks?

Yes, the use of multiple NAS Synology RackStation RS2212RP+ / RS2212+ devices in a backup or replication configuration can help mitigate data loss risks. By setting up a backup or replication system with these devices, you can ensure that your data is stored redundantly across multiple devices.

Here's how it works:

  1. Backup Configuration: You can set up one NAS device as the primary storage location for your data, and then configure another NAS device as a backup target. This backup device can regularly sync with the primary device, ensuring that all data changes are replicated and stored on both devices. In case of data loss on the primary device, you can restore the data from the backup device.
  2. Replication Configuration: In this setup, you can configure multiple NAS devices to replicate data between them. Any changes made on one device will be automatically synchronized and replicated to the other devices. This ensures that your data is stored on multiple devices simultaneously, reducing the risk of data loss.

By using multiple NAS devices in either a backup or replication configuration, you create a redundant storage system that can help protect against various risks such as hardware failures, data corruption, accidental deletions, or other unforeseen events. If one device fails or experiences data loss, you can still access your data from the other devices.

It's important to note that while using multiple NAS devices can mitigate data loss risks, it's still recommended to have additional backup measures in place, such as offsite backups or cloud storage, for even more protection.

How to Remove Hard Disks from Your NAS and Connect Them to a PC

Although the NAS RackStation RS2212RP+ / RS2212+ 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:

  1. 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.

  2. 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.

  3. Label each hard disk according to its position inside the NAS. The order of the drives is crucial for correct RAID reconstruction.

  4. 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.

    Go to view
    How to Order Remote Data Recovery

    How to Order Remote Data Recovery

Step-by-Step Data Recovery with Hetman RAID Recovery

Hetman Raid Recovery

This program restores data from damaged RAID arrays and is fully compatible with Synology RackStation RS2212RP+ / RS2212+. 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.

Go to view
How to recover data from a Synology

How to recover data from a Synology

RackStation RS2212RP+ / RS2212+ has 10 HDD slots, and it supports the following array types:

  • Synology Hybrid RAID (SHR);
  • RAID 6;
  • RAID 5;
  • RAID 10;
  • RAID 1;
  • RAID 0;
  • Basic;
  • JBOD;

NAS supports:

  • Btrfs;
  • EXT4;
  • EXT3 (External Disk Only);
  • FAT32 (External Disk Only);
  • exFAT (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:

  1. Ensure you have enough free space to store the image. Its size will typically match the size of the original disk.

  2. In the main window, select the target disk and choose Tools - Save Disk. You can also select multiple disks if needed.

  3. 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.

    Hetman RAID Recovery: Image Creation Wizard
  4. 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.

    Hetman RAID Recovery: Choose a disk or save the image via FTP

Where Are the User’s Files Actually Stored?

The Synology RackStation RS2212RP+ / RS2212+ network-attached storage keeps DSM (DiskStation Manager) 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

Feedback

We will be happy to answer your questions!

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 RackStation RS2212RP+ / RS2212+, feel free to leave a comment!
Post comment
User
Leave a reply
Your email address will not be published. Required fields are marked *

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.

Share

Questions and answers

  • What are the key features of the NAS Synology RackStation RS2212RP+ / RS2212+ that ensure file access security?

    The NAS Synology RackStation RS2212RP+ / RS2212+ offers several key features to ensure file access security:

    1. Access Control: The NAS provides comprehensive access control mechanisms, allowing administrators to set user permissions and privileges for accessing files and folders. This ensures that only authorized individuals can access sensitive data.
    2. User Authentication: The NAS supports various authentication methods, including local user accounts, Windows Active Directory integration, LDAP, and more. This enables centralized user management and authentication, enhancing security and simplifying user administration.
    3. Encryption: The RS2212RP+ / RS2212+ supports AES 256-bit encryption, which can be applied to shared folders, ensuring that data is securely stored and transmitted over the network. This protects files from unauthorized access even if the physical drives are stolen.
    4. Firewall and IP Blocking: The NAS includes a built-in firewall to block unauthorized access attempts. It also supports IP blocking, allowing administrators to specify IP addresses or IP ranges that are denied access to the NAS, further enhancing security.
    5. Antivirus and Malware Protection: Synology NAS devices offer integrated antivirus solutions that can scan files in real-time, detecting and blocking potential threats. Regular virus definition updates ensure continuous protection against the latest malware.
    6. Two-Factor Authentication: The RS2212RP+ / RS2212+ supports two-factor authentication (2FA) for an extra layer of security. By requiring a second authentication factor, such as a time-based one-time password (TOTP), it significantly reduces the risk of unauthorized access.
    7. Snapshot Replication: This feature allows the NAS to take point-in-time snapshots of shared folders. In case of accidental file modifications or deletions, administrators can easily restore previous versions from the snapshots, ensuring data integrity and minimizing the risk of data loss.
    8. HTTPS and SSL/TLS Support: The NAS supports secure connections over HTTPS, ensuring that data transmitted between the NAS and connected devices is encrypted. It also supports SSL/TLS certificates for secure remote access and file transfers.
    9. Audit Logs and Alerts: The NAS logs all user activities, providing administrators with detailed audit logs for monitoring and tracking file access. It also supports email or SMS alerts for specific events, such as failed login attempts or suspicious activities, allowing administrators to respond promptly to potential security breaches.

    Overall, these features help ensure file access security on the NAS Synology RackStation RS2212RP+ / RS2212+, protecting sensitive data from unauthorized access, malware, and other potential threats.

  • How does the NAS Synology RackStation RS2212RP+ / RS2212+ protect against unauthorized access and data breaches?

    The NAS Synology RackStation RS2212RP+ / RS2212+ provides several features to protect against unauthorized access and data breaches:

    1. User Authentication: It supports multiple user accounts with customizable privileges. Administrators can create individual accounts and assign specific access rights to different folders and services.
    2. Firewall and IP Blocking: The built-in firewall allows administrators to set up rules to control network traffic and block specific IP addresses or ranges, preventing unauthorized access attempts.
    3. SSL/TLS Encryption: The device supports SSL/TLS encryption protocols for secure communication over the network, ensuring that data transmitted between the NAS and connected devices remains encrypted and protected from eavesdropping.
    4. Two-Factor Authentication: Synology offers the option to enable two-factor authentication (2FA) for user login. This adds an extra layer of security by requiring users to provide a verification code, typically generated by a mobile app, in addition to their regular password.
    5. AES 256-bit Encryption: The NAS supports AES 256-bit encryption for shared folders and external drives. This ensures that data stored on the device or transferred to other devices remains encrypted and secure.
    6. Antivirus and Malware Protection: Synology provides a built-in antivirus solution that can scan files and folders for potential threats. It also offers regular virus definition updates to protect against the latest malware.
    7. Network Intrusion Prevention: The NAS has a feature called Intrusion Prevention System (IPS) that monitors network traffic and blocks suspicious activities or known attack patterns, protecting against network-based attacks.
    8. Data Backup and Snapshot: The device supports various backup methods, including scheduled backups to external drives or remote servers. Additionally, the Snapshot feature allows users to create point-in-time copies of their data, protecting against accidental deletions or modifications.
    9. Auditing and Logging: The NAS keeps detailed logs of user activities, including file access, login attempts, and system changes. These logs can help administrators identify any unauthorized access attempts or potential security breaches.
    10. Regular Firmware Updates: Synology regularly releases firmware updates that include security patches and bug fixes. Keeping the device up to date with the latest firmware ensures that known vulnerabilities are addressed.

    It is important to note that while the Synology RackStation RS2212RP+ / RS2212+ offers robust security features, it is still essential for administrators to follow best practices such as using strong passwords, regularly updating the firmware, and implementing proper network security measures to further enhance the overall security posture.

  • Can the NAS Synology RackStation RS2212RP+ / RS2212+ provide granular control over file access permissions and user privileges?

    Yes, the NAS Synology RackStation RS2212RP+ / RS2212+ provides granular control over file access permissions and user privileges. It utilizes the DiskStation Manager (DSM) operating system, which offers a comprehensive set of access control features.

    With DSM, you can create user accounts and groups, assign specific permissions to folders and files, and control access at a granular level. You can define read, write, and execute permissions for individual users or groups, and even set advanced permissions such as file locking and folder syncing.

    Additionally, DSM includes features like Windows ACL support, which allows you to manage access permissions using Windows-style permissions. This ensures compatibility and ease of use for users familiar with Windows-based systems.

    Overall, the NAS Synology RackStation RS2212RP+ / RS2212+ provides robust and flexible control over file access permissions and user privileges, allowing you to tailor access rights according to your specific requirements.