What are the key features and specifications of the NAS Uniview DE3148-V2 that make it suitable for surveillance system applications?

The NAS Uniview DE3148-V2 is a Network Attached Storage device specifically designed for surveillance system applications. Some key features and specifications that make it suitable for this purpose include:High storage capacity: The DE3148-V2 offers up to 48TB of storage capacity, allowing for the storage of a large amount of surveillance footage.RAID support: It supports RAID 0, 1, 5, 6, and 10 configurations, providing data redundancy and protection against drive failures.High-speed data transfer: The device supports Gigabit Ethernet connectivity, ensuring fast and reliable data transfer between the surveillance cameras and the NAS.Intelligent video analysis: The DE3148-V2 is equipped with intelligent video analysis capabilities, such as motion detection, tripwire detection, and intrusion detection. This allows for advanced surveillance monitoring and alerts.Scalability: The NAS supports up to 16 hard drives, allowing for easy scalability as the surveillance system grows.Easy integration: It is compatible with various surveillance camera brands and supports multiple protocols, making it easy to integrate into existing surveillance systems.Remote access: The DE3148-V2 provides remote access to surveillance footage through a web browser or mobile app, enabling users to monitor the system from anywhere.Backup and data protection: It offers various backup options, including local backup, remote backup, and cloud backup, ensuring the safety and availability of surveillance data.User-friendly interface: The device comes with a user-friendly interface that simplifies the configuration and management of the surveillance system.Reliable performance: The DE3148-V2 is built with high-quality components and features a robust design, ensuring reliable performance even in demanding surveillance environments.Overall, the NAS Uniview DE3148-V2 offers a combination of storage capacity, data protection, scalability, and advanced surveillance features, making it suitable for surveillance system applications.

How does the NAS Uniview DE3148-V2 ensure reliable and secure storage of surveillance footage?

The NAS Uniview DE3148-V2 ensures reliable and secure storage of surveillance footage through various mechanisms:RAID Configuration: The NAS supports RAID (Redundant Array of Independent Disks) configurations, such as RAID 0, 1, 5, 6, 10, and JBOD. RAID provides data redundancy and ensures that even if one disk fails, the data remains accessible and intact.Data Encryption: The NAS supports AES 256-bit encryption, which encrypts the data stored on the disks. This ensures that even if someone gains unauthorized access to the NAS, they cannot read or retrieve the surveillance footage without the encryption key.User Access Control: The NAS allows administrators to set up user accounts and access permissions. This ensures that only authorized personnel can access and manage the surveillance footage stored on the NAS.Network Security: The NAS supports various network security protocols, such as HTTPS, SSL/TLS, and IP filtering. These protocols encrypt the communication between the NAS and other devices, preventing unauthorized interception or tampering of the surveillance footage during transmission.Backup and Snapshot: The NAS provides backup and snapshot features, allowing users to create copies of the surveillance footage at regular intervals. This protects against accidental deletion or corruption of the footage, ensuring its availability for future reference.Surveillance-specific Features: The NAS is designed specifically for surveillance applications, providing features like multiple camera support, video streaming optimization, and intelligent video analytics. These features enhance the overall reliability and security of storing surveillance footage.Overall, the NAS Uniview DE3148-V2 combines hardware and software features to ensure reliable and secure storage of surveillance footage, protecting it from data loss, unauthorized access, and tampering.

Can you provide a step-by-step guide on how to set up and configure the NAS Uniview DE3148-V2 for a surveillance system?

Setting up and configuring the NAS Uniview DE3148-V2 for a surveillance system involves several steps. Here is a step-by-step guide to help you with the process: Hardware Setup: Unpack the NAS Uniview DE3148-V2 and ensure all the necessary components are present. Connect the NAS to a power source and turn it on. Connect the NAS to your local network using an Ethernet cable. Connect the NAS to a monitor using an HDMI cable. Connect a USB mouse and keyboard to the NAS. Initial Configuration: After turning on the NAS, wait for the operating system to boot up. Once the boot process is complete, the NAS will display a login screen on the connected monitor. Use the USB mouse and keyboard to log in with the default username and password provided by Uniview (usually admin/admin). Network Configuration: Once logged in, navigate to the network settings to configure the NAS's IP address. Choose a suitable IP address for the NAS within your network's range. Set the subnet mask and default gateway according to your network configuration. Apply the changes and ensure the NAS is connected to the network. Storage Configuration: Access the storage settings on the NAS interface. Format the hard drives connected to the NAS for use in the surveillance system. Create storage pools and volumes to organize the available storage space. Set up RAID configurations if desired for data redundancy. Surveillance Configuration: Install the Uniview surveillance software on a computer connected to the same network as the NAS. Launch the software and add the NAS as a storage device. Configure the surveillance software to use the NAS for storing video footage. Set up camera configurations and add cameras to the surveillance system. Customize recording schedules, motion detection settings, and other surveillance parameters. Access and Monitoring: Once the surveillance system is configured, you can access and monitor it remotely. Use the Uniview surveillance software on your computer or mobile app to view live video feeds and recorded footage. Configure remote access settings to access the surveillance system outside your local network if required. It is important to note that the specific steps and interface may vary slightly depending on the firmware version and configuration options available on the NAS Uniview DE3148-V2. It is recommended to refer to the user manual or contact Uniview support for detailed instructions specific to your device.

How to Access Files on a RAID Disk When NAS Uniview DE3148-V2 is Inactive: Comprehensive Guide

Name: How to recover data from a Uniview
Uploaded: 2025-10-16T08:53:56+03:00
Description: How to recover data from a Uniview

Has your NAS Uniview DE3148-V2 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?

How to Access Files on a RAID Disk When NAS Uniview DE3148-V2 is Inactive: Comprehensive Guide

Data Recovery Tool

Uniview DE3148-V2 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 DE3148-V2. We’ll walk through the most common causes of failure and demonstrate proven methods to restore files from a lost or degraded RAID array.

Contents

Why Regular Data Recovery Tools Can’t Restore Files from RAID
Key Information About the NAS Uniview DE3148-V2
How to Remove Hard Disks from Your NAS and Connect Them to a PC

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 Uniview 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 inadequate cooling or high ambient temperatures impact data loss risks for NAS Uniview DE3148-V2 devices?

Yes, inadequate cooling or high ambient temperatures can indeed impact data loss risks for NAS Uniview DE3148-V2 devices. NAS devices generate heat during operation, and if the cooling system is not sufficient or the ambient temperature is too high, it can lead to overheating of the device.

When a NAS device overheats, it can cause the hard drives to malfunction or fail, leading to potential data loss. High temperatures can also degrade the performance and lifespan of the hard drives, increasing the risk of data loss over time.

To mitigate these risks, it is important to ensure proper cooling for the NAS device. This can be achieved by placing the device in a well-ventilated area, using fans or cooling systems, and monitoring the temperature regularly. Additionally, it is recommended to follow the manufacturer's guidelines for operating temperature ranges and ensure that the NAS device is not exposed to extreme temperatures.

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

Although the NAS DE3148-V2 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:

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

Step-by-Step Data Recovery with Hetman RAID Recovery

This program restores data from damaged RAID arrays and is fully compatible with Uniview DE3148-V2. 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 Uniview

DE3148-V2 has 48 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;

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:

Ensure you have enough free space to store the image. Its size will typically match the size of the original disk.
In the main window, select the target disk and choose Tools - Save Disk. You can also select multiple disks if needed.
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.
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 Uniview DE3148-V2 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

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Comments (3)

Hetman Software: Data Recovery 9.08.2022 12:31 #

If you want to ask a question about data recovery, from NAS DE3148-V2, feel free to leave a comment!

Reply
Carlile Westcott 9.09.2023 14:45 #

How to recover data from NAS Uniview DE3148-V2?

Reply
- Hetman Software 9.09.2023 15:00 #
  To recover data from a NAS Uniview DE3148-V2, you can follow these steps:
  Check the hardware: Ensure that the NAS device is properly connected to the power source and the network. Make sure all cables are securely plugged in.
  Access the NAS interface: Open a web browser and enter the IP address of the NAS device in the address bar. This will take you to the NAS interface.
  Login to the NAS: Enter the username and password to access the NAS interface. If you don't have the login credentials, try using the default username and password provided by the manufacturer or contact the NAS support for assistance.
  Check the drive status: Once logged in, navigate to the storage or drive management section of the NAS interface. Check the status of the drives to ensure they are recognized and functioning properly. If any drive is marked as failed or offline, it may be the cause of data loss.
  Attempt data recovery: If the drives are recognized and functioning, but you are unable to access the data, you can try using data recovery software. There are several options available online, such as EaseUS Data Recovery Wizard, Recuva, or Disk Drill. Download and install the software on a computer connected to the same network as the NAS device. Follow the instructions provided by the software to scan and recover the lost data.
  Seek professional help: If the data recovery software fails to retrieve your data, it is recommended to contact a professional data recovery service. They have specialized tools and expertise to recover data from NAS devices. Be prepared for potentially high costs associated with professional data recovery services.
  Note: It is always recommended to have a backup of your important data to avoid data loss situations. Regularly backing up your data to an external storage device or cloud storage can help prevent the need for data recovery in the first place.
  Reply

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Updated:
16.10.2025 8:53

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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.

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.

Questions and answers

What are the key features and specifications of the NAS Uniview DE3148-V2 that make it suitable for surveillance system applications?
The NAS Uniview DE3148-V2 is a Network Attached Storage device specifically designed for surveillance system applications. Some key features and specifications that make it suitable for this purpose include:
1. High storage capacity: The DE3148-V2 offers up to 48TB of storage capacity, allowing for the storage of a large amount of surveillance footage.
2. RAID support: It supports RAID 0, 1, 5, 6, and 10 configurations, providing data redundancy and protection against drive failures.
3. High-speed data transfer: The device supports Gigabit Ethernet connectivity, ensuring fast and reliable data transfer between the surveillance cameras and the NAS.
4. Intelligent video analysis: The DE3148-V2 is equipped with intelligent video analysis capabilities, such as motion detection, tripwire detection, and intrusion detection. This allows for advanced surveillance monitoring and alerts.
5. Scalability: The NAS supports up to 16 hard drives, allowing for easy scalability as the surveillance system grows.
6. Easy integration: It is compatible with various surveillance camera brands and supports multiple protocols, making it easy to integrate into existing surveillance systems.
7. Remote access: The DE3148-V2 provides remote access to surveillance footage through a web browser or mobile app, enabling users to monitor the system from anywhere.
8. Backup and data protection: It offers various backup options, including local backup, remote backup, and cloud backup, ensuring the safety and availability of surveillance data.
9. User-friendly interface: The device comes with a user-friendly interface that simplifies the configuration and management of the surveillance system.
10. Reliable performance: The DE3148-V2 is built with high-quality components and features a robust design, ensuring reliable performance even in demanding surveillance environments.
Overall, the NAS Uniview DE3148-V2 offers a combination of storage capacity, data protection, scalability, and advanced surveillance features, making it suitable for surveillance system applications.
How does the NAS Uniview DE3148-V2 ensure reliable and secure storage of surveillance footage?
The NAS Uniview DE3148-V2 ensures reliable and secure storage of surveillance footage through various mechanisms:
1. RAID Configuration: The NAS supports RAID (Redundant Array of Independent Disks) configurations, such as RAID 0, 1, 5, 6, 10, and JBOD. RAID provides data redundancy and ensures that even if one disk fails, the data remains accessible and intact.
2. Data Encryption: The NAS supports AES 256-bit encryption, which encrypts the data stored on the disks. This ensures that even if someone gains unauthorized access to the NAS, they cannot read or retrieve the surveillance footage without the encryption key.
3. User Access Control: The NAS allows administrators to set up user accounts and access permissions. This ensures that only authorized personnel can access and manage the surveillance footage stored on the NAS.
4. Network Security: The NAS supports various network security protocols, such as HTTPS, SSL/TLS, and IP filtering. These protocols encrypt the communication between the NAS and other devices, preventing unauthorized interception or tampering of the surveillance footage during transmission.
5. Backup and Snapshot: The NAS provides backup and snapshot features, allowing users to create copies of the surveillance footage at regular intervals. This protects against accidental deletion or corruption of the footage, ensuring its availability for future reference.
6. Surveillance-specific Features: The NAS is designed specifically for surveillance applications, providing features like multiple camera support, video streaming optimization, and intelligent video analytics. These features enhance the overall reliability and security of storing surveillance footage.
Overall, the NAS Uniview DE3148-V2 combines hardware and software features to ensure reliable and secure storage of surveillance footage, protecting it from data loss, unauthorized access, and tampering.
Can you provide a step-by-step guide on how to set up and configure the NAS Uniview DE3148-V2 for a surveillance system?
Setting up and configuring the NAS Uniview DE3148-V2 for a surveillance system involves several steps. Here is a step-by-step guide to help you with the process:
1. Hardware Setup:
  - Unpack the NAS Uniview DE3148-V2 and ensure all the necessary components are present.
  - Connect the NAS to a power source and turn it on.
  - Connect the NAS to your local network using an Ethernet cable.
  - Connect the NAS to a monitor using an HDMI cable.
  - Connect a USB mouse and keyboard to the NAS.
2. Initial Configuration:
  - After turning on the NAS, wait for the operating system to boot up.
  - Once the boot process is complete, the NAS will display a login screen on the connected monitor.
  - Use the USB mouse and keyboard to log in with the default username and password provided by Uniview (usually admin/admin).
3. Network Configuration:
  - Once logged in, navigate to the network settings to configure the NAS's IP address.
  - Choose a suitable IP address for the NAS within your network's range.
  - Set the subnet mask and default gateway according to your network configuration.
  - Apply the changes and ensure the NAS is connected to the network.
4. Storage Configuration:
  - Access the storage settings on the NAS interface.
  - Format the hard drives connected to the NAS for use in the surveillance system.
  - Create storage pools and volumes to organize the available storage space.
  - Set up RAID configurations if desired for data redundancy.
5. Surveillance Configuration:
  - Install the Uniview surveillance software on a computer connected to the same network as the NAS.
  - Launch the software and add the NAS as a storage device.
  - Configure the surveillance software to use the NAS for storing video footage.
  - Set up camera configurations and add cameras to the surveillance system.
  - Customize recording schedules, motion detection settings, and other surveillance parameters.
6. Access and Monitoring:
  - Once the surveillance system is configured, you can access and monitor it remotely.
  - Use the Uniview surveillance software on your computer or mobile app to view live video feeds and recorded footage.
  - Configure remote access settings to access the surveillance system outside your local network if required.
It is important to note that the specific steps and interface may vary slightly depending on the firmware version and configuration options available on the NAS Uniview DE3148-V2. It is recommended to refer to the user manual or contact Uniview support for detailed instructions specific to your device.