Expert Steps for RAID Array Data Recovery on NAS Raidon InTANK iR2622 Devices

Contents

• Why Regular Data Recovery Tools Can’t Restore Files from RAID
• Key Information About the NAS Raidon InTANK iR2622
• How to Remove Hard Disks from Your NAS and Connect Them to a PC
  • Step-by-Step Data Recovery with Hetman RAID Recovery
  • How to Safely Recover Data from Disk Images
  • Where Are the User’s Files Actually Stored?
  • RAID Recovery Software: Detailed Comparison

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 Raidon 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.

How can a NAS Raidon InTANK iR2622 device's cache settings impact data loss risks?

The cache settings of a NAS Raidon InTANK iR2622 device can impact data loss risks in the following ways:

1. Write-back vs. Write-through cache: The device may offer options to configure the cache as write-back or write-through. In the write-back mode, data is first written to the cache and then gradually flushed to the disks, providing faster write performance. However, if a power failure or system crash occurs before the data is written to the disks, there is a risk of data loss. In the write-through mode, data is simultaneously written to the cache and disks, reducing the risk of data loss but potentially impacting write performance.
2. Cache size: A larger cache size can improve performance by storing more frequently accessed data, reducing the need to fetch it from the disks. However, if data is only stored in the cache and not immediately written to the disks, a power failure or system crash can lead to data loss. Therefore, a larger cache size may increase the risk of data loss if not properly configured.
3. Battery backup unit (BBU): Some NAS devices, including the Raidon InTANK iR2622, may have a BBU option to protect the cache in case of power failure. The BBU ensures that the data in the cache is written to the disks even during a power outage, reducing the risk of data loss. Enabling the BBU can significantly mitigate data loss risks associated with cache settings.
4. Cache flush frequency: The device may allow you to configure the frequency at which the cache is flushed to the disks. A more frequent cache flush reduces the amount of data at risk in case of a failure but may impact performance. Finding the right balance between performance and data loss risk is crucial.

It is important to carefully consider the cache settings and their impact on data loss risks when configuring a NAS device. Implementing appropriate backup strategies, such as regular data backups to external storage or the cloud, can further mitigate the risk of data loss.

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

Although the NAS InTANK iR2622 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.

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   How to Order Remote Data Recovery

Step-by-Step Data Recovery with Hetman RAID Recovery

This program restores data from damaged RAID arrays and is fully compatible with Raidon InTANK iR2622. 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.

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How to recover data from a Raidon

InTANK iR2622 has 2 HDD slots, and it supports the following array types:

• RAID 0;
• RAID 1;
• JBOD;

NAS supports:

• APFS / HFS+;
• Ext2 / Ext3 / Ext4;

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.

   

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.

   

Where Are the User’s Files Actually Stored?

The Raidon InTANK iR2622 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.

RAID Recovery Software: Detailed Comparison