
- Why Regular Data Recovery Tools Can’t Restore Files from RAID
- Key Information About the NAS Digiever DBS-4132
- How to Remove Hard Disks from Your NAS and Connect Them to a PC
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 Digiever 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.
Are there any precautions to take while replacing or upgrading hard drives in NAS Digiever DBS-4132 devices?
Yes, there are several precautions to consider while replacing or upgrading hard drives in NAS Digiever DBS-4132 devices. Here are some important ones:
- Backup your data: Before starting any hardware replacement or upgrade process, it is crucial to back up all your important data. This ensures that even if something goes wrong during the process, you will not lose your valuable information.
- Use compatible hard drives: Ensure that the hard drives you are planning to replace or upgrade with are compatible with the NAS Digiever DBS-4132 device. Check the manufacturer's specifications or consult the user manual to ensure compatibility.
- Power down the device: Before removing or installing any hard drives, make sure to power down the NAS device properly. This prevents any accidental damage to the hardware or data loss.
- Ground yourself: Static electricity can cause damage to sensitive electronic components. To avoid this, always ground yourself by wearing an anti-static wristband or by touching a grounded metal object before handling any internal components.
- Follow proper installation procedures: When installing new hard drives, follow the manufacturer's instructions carefully. Ensure that the drives are securely connected and properly seated in their respective slots.
- RAID configuration: If your NAS device uses RAID (Redundant Array of Independent Disks), it is important to understand the RAID configuration and how it will be affected by the replacement or upgrade. Make sure to consult the user manual or seek professional assistance if needed.
- Test the new drives: After the replacement or upgrade, it is advisable to test the new hard drives to ensure they are functioning correctly. This can be done by running diagnostic tests or by checking the NAS device's management interface for any errors or warnings.
- Monitor the system: After the replacement or upgrade, monitor the NAS device closely for any unusual behavior or errors. This will help identify any issues early on and take appropriate actions.
It is recommended to refer to the user manual or contact the manufacturer's support for specific instructions related to your NAS Digiever DBS-4132 device.
How to Remove Hard Disks from Your NAS and Connect Them to a PC
Although the NAS DBS-4132 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:
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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.
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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.
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Label each hard disk according to its position inside the NAS. The order of the drives is crucial for correct RAID reconstruction.
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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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Step-by-Step Data Recovery with Hetman RAID Recovery

This program restores data from damaged RAID arrays and is fully compatible with Digiever DBS-4132. 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.
How to recover data from a Digiever
DBS-4132 has 4 HDD slots, and it supports the following array types:
- RAID 0;
- RAID 1;
- RAID 5;
- RAID 6;
- JBOD;
NAS supports:
- exFAT, VFAT, FAT 12 / 16 / 32;
- NTFS / ReFS;
- APFS / HFS+;
- Ext2 / 3 / 4 / ReiserFS / XFS / UFS / ZFS / Btrfs;
- VMFS / HikvisionFS;
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:
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Ensure you have enough free space to store the image. Its size will typically match the size of the original disk.
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In the main window, select the target disk and choose Tools - Save Disk. You can also select multiple disks if needed.
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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.

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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 Digiever DBS-4132 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
| 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 |


It is possible to recover data from a NAS Digiever DBS-4132 device that has been affected by firmware corruption or update failure. However, the process of data recovery can be complex and may require professional assistance.
Here are a few steps you can try to recover data from the affected device:
Remember to always have a backup of your important data to avoid potential data loss in the future.