What is DLNA and how does it work in the context of media streaming and sharing?

DLNA stands for Digital Living Network Alliance. It is a set of guidelines and standards that enable devices to share and stream media content over a home network. DLNA allows different devices, such as smartphones, tablets, computers, smart TVs, and gaming consoles, to communicate and share media files seamlessly.DLNA works by establishing a network connection between compatible devices. The devices must be connected to the same local network, such as a Wi-Fi network or Ethernet, for DLNA to function. Once connected, DLNA enables devices to discover and communicate with each other.To share media content, a DLNA-enabled device acts as a server, making its media files available to other devices on the network. This server device indexes and organizes the media files, allowing other devices to access and stream them. The media files can include photos, videos, music, and even recorded television shows.DLNA also defines different roles for devices in the network. For example, a device can act as a Digital Media Server (DMS) to share media files, a Digital Media Player (DMP) to access and play media files, or a Digital Media Controller (DMC) to control the playback of media files on another device.When a DLNA-compatible device wants to access media files from a server device, it sends a request to the server. The server then responds by providing a list of available media files. The requesting device can then choose a file to stream or play, and the server device streams the content over the network to the requesting device.DLNA supports various media formats and codecs, allowing for compatibility across different devices. It simplifies the process of sharing and streaming media content within a home network, enabling users to access their media files from different devices without the need for complex configurations or additional software.

How does the NAS Promise Vess 1720i utilize DLNA protocol to enhance media storage and playback capabilities?

The NAS Promise Vess 1720i utilizes the DLNA (Digital Living Network Alliance) protocol to enhance media storage and playback capabilities in the following ways:Media Storage: The NAS (Network Attached Storage) system can act as a central repository for storing various types of media files such as photos, videos, and music. DLNA allows the Vess 1720i to organize and index these files, making it easier to access and manage the media content.Media Streaming: DLNA enables the Vess 1720i to stream media content to DLNA-certified devices such as smart TVs, media players, gaming consoles, and smartphones. Users can access their stored media files from any DLNA-compatible device connected to the same network, without the need for additional cables or devices.Cross-Platform Compatibility: DLNA ensures that media files stored on the NAS can be accessed and played back on different operating systems and devices. It supports interoperability between devices running on Windows, macOS, Linux, Android, and iOS, allowing seamless sharing and streaming of media content across platforms.Remote Access: The DLNA protocol, combined with other networking technologies like UPnP (Universal Plug and Play), allows users to remotely access their media files stored on the Vess 1720i. This means that users can stream their media content even when they are away from home, as long as they have an internet connection and a DLNA-compatible device.Media Control: DLNA enables the Vess 1720i to act as a media server, providing control and navigation options for media playback. Users can use a DLNA-compatible device as a remote control to browse and select media files stored on the NAS, adjust playback settings, create playlists, and even stream media to multiple devices simultaneously.Overall, by utilizing the DLNA protocol, the NAS Promise Vess 1720i enhances media storage and playback capabilities by offering convenient access, seamless streaming, cross-platform compatibility, and remote control options for managing and enjoying media content.

Can you explain the specific features and functionalities of DLNA implementation in the NAS Promise Vess 1720i, and how it benefits users in terms of media management and accessibility?

DLNA (Digital Living Network Alliance) is a technology standard that enables devices to share media files over a network. The NAS (Network Attached Storage) Promise Vess 1720i is a storage device that supports DLNA implementation, providing several features and functionalities for media management and accessibility. Here are some key aspects:Media Server: The Promise Vess 1720i NAS acts as a media server, allowing users to store and organize their media files such as photos, videos, and music in a central location. This eliminates the need to store media on individual devices, making it easier to manage and access content.Media Streaming: With DLNA, the NAS can stream media files to DLNA-enabled devices within the network. This means you can play videos on your smart TV, listen to music on your wireless speakers, or view photos on your tablet, all directly from the NAS without transferring files to each device separately.Cross-Platform Compatibility: DLNA ensures compatibility between different devices and operating systems. The Promise Vess 1720i NAS supports DLNA, allowing seamless media sharing across various platforms, including Windows, macOS, iOS, and Android. This enables users to access their media files from different devices, regardless of the operating system.Remote Access: DLNA implementation in the Promise Vess 1720i NAS enables remote access to media files. Users can access and stream their media content from outside their home network, provided they have an internet connection. This feature is particularly beneficial when traveling or when away from home.Transcoding: The NAS may also offer transcoding capabilities, converting media files into a compatible format for the target device. For example, if a video file is not natively supported by a particular device, the NAS can transcode it on-the-fly to a format that the device can play. This ensures media accessibility across a wide range of devices.Overall, DLNA implementation in the Promise Vess 1720i NAS simplifies media management by centralizing storage, improves accessibility by allowing streaming to various devices, and enhances compatibility between different platforms. It provides a convenient and efficient solution for organizing, accessing, and enjoying media files within a networked environment.

Best Practices for NAS Promise Vess 1720i RAID Array Data Recovery

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

Has your NAS Promise Vess 1720i 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?

Best Practices for NAS Promise Vess 1720i RAID Array Data Recovery

Data Recovery Tool

Promise Vess 1720i 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 Vess 1720i. 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 Promise Vess 1720i
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 Promise 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 file system corruption impact data integrity on NAS Promise Vess 1720i devices?

File system corruption can have a significant impact on data integrity on NAS Promise Vess 1720i devices. Here are some ways it can affect data integrity:

Data Loss: File system corruption can lead to the loss of data stored on the NAS device. Corruption can cause files and directories to become inaccessible or completely disappear from the file system.
Data Inconsistency: Corruption can result in data inconsistencies where the information stored in files becomes incorrect or incomplete. This can lead to data errors and make the data unreliable or unusable.
Data Modification: Corruption can modify the content of files, causing data to become corrupted or altered. This can result in data integrity issues, especially if critical system files or important user data are affected.
System Instability: File system corruption can make the NAS device unstable and cause it to crash or become unresponsive. This can disrupt ongoing operations and potentially lead to data corruption or loss.
Difficulty in Recovery: Recovering data from a corrupted file system can be challenging and may require specialized tools or professional assistance. In some cases, data recovery may not be possible, leading to permanent data loss.

To mitigate the impact of file system corruption on data integrity, it is important to regularly backup data stored on the NAS device. Additionally, performing regular file system checks and maintenance can help identify and fix any corruption issues before they cause significant data loss or integrity problems.

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

Although the NAS Vess 1720i 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.

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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 Promise Vess 1720i. 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 Promise

Vess 1720i has 16 HDD slots, and it supports the following array types:

RAID 0;
RAID 1;
RAID 1E;
RAID 3;
RAID 5;
RAID 6;
RAID 30;
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 Promise Vess 1720i 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

Feedback

We will be happy to answer your questions!

Comments (3)

Hetman Software: Data Recovery 9.08.2022 12:31 #

If you want to ask a question about data recovery, from NAS Vess 1720i, feel free to leave a comment!

Reply
Basil Wind 7.09.2023 21:49 #

Can data recovery from a NAS Promise Vess 1720i device be performed if there are issues with the storage pool or configurations?

Reply
- Hetman Software 7.09.2023 22:00 #
  
  Yes, data recovery from a NAS Promise Vess 1720i device can be performed even if there are issues with the storage pool or configurations. However, the success and feasibility of data recovery depend on the specific nature and severity of the issues.
  If there are issues with the storage pool or configurations, it is recommended to contact a professional data recovery service provider or the technical support of Promise Technology, the manufacturer of Vess 1720i, for assistance. They will have the expertise and tools required to diagnose and resolve the issues, and if necessary, perform data recovery.
  It is important to note that attempting to recover data without proper knowledge or experience can potentially worsen the situation and result in permanent data loss. Therefore, it is advisable to seek professional help for data recovery from a NAS device.
  
  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 is DLNA and how does it work in the context of media streaming and sharing?

DLNA stands for Digital Living Network Alliance. It is a set of guidelines and standards that enable devices to share and stream media content over a home network. DLNA allows different devices, such as smartphones, tablets, computers, smart TVs, and gaming consoles, to communicate and share media files seamlessly.
DLNA works by establishing a network connection between compatible devices. The devices must be connected to the same local network, such as a Wi-Fi network or Ethernet, for DLNA to function. Once connected, DLNA enables devices to discover and communicate with each other.
To share media content, a DLNA-enabled device acts as a server, making its media files available to other devices on the network. This server device indexes and organizes the media files, allowing other devices to access and stream them. The media files can include photos, videos, music, and even recorded television shows.
DLNA also defines different roles for devices in the network. For example, a device can act as a Digital Media Server (DMS) to share media files, a Digital Media Player (DMP) to access and play media files, or a Digital Media Controller (DMC) to control the playback of media files on another device.
When a DLNA-compatible device wants to access media files from a server device, it sends a request to the server. The server then responds by providing a list of available media files. The requesting device can then choose a file to stream or play, and the server device streams the content over the network to the requesting device.
DLNA supports various media formats and codecs, allowing for compatibility across different devices. It simplifies the process of sharing and streaming media content within a home network, enabling users to access their media files from different devices without the need for complex configurations or additional software.
How does the NAS Promise Vess 1720i utilize DLNA protocol to enhance media storage and playback capabilities?
The NAS Promise Vess 1720i utilizes the DLNA (Digital Living Network Alliance) protocol to enhance media storage and playback capabilities in the following ways:
1. Media Storage: The NAS (Network Attached Storage) system can act as a central repository for storing various types of media files such as photos, videos, and music. DLNA allows the Vess 1720i to organize and index these files, making it easier to access and manage the media content.
2. Media Streaming: DLNA enables the Vess 1720i to stream media content to DLNA-certified devices such as smart TVs, media players, gaming consoles, and smartphones. Users can access their stored media files from any DLNA-compatible device connected to the same network, without the need for additional cables or devices.
3. Cross-Platform Compatibility: DLNA ensures that media files stored on the NAS can be accessed and played back on different operating systems and devices. It supports interoperability between devices running on Windows, macOS, Linux, Android, and iOS, allowing seamless sharing and streaming of media content across platforms.
4. Remote Access: The DLNA protocol, combined with other networking technologies like UPnP (Universal Plug and Play), allows users to remotely access their media files stored on the Vess 1720i. This means that users can stream their media content even when they are away from home, as long as they have an internet connection and a DLNA-compatible device.
5. Media Control: DLNA enables the Vess 1720i to act as a media server, providing control and navigation options for media playback. Users can use a DLNA-compatible device as a remote control to browse and select media files stored on the NAS, adjust playback settings, create playlists, and even stream media to multiple devices simultaneously.
Overall, by utilizing the DLNA protocol, the NAS Promise Vess 1720i enhances media storage and playback capabilities by offering convenient access, seamless streaming, cross-platform compatibility, and remote control options for managing and enjoying media content.
Can you explain the specific features and functionalities of DLNA implementation in the NAS Promise Vess 1720i, and how it benefits users in terms of media management and accessibility?
DLNA (Digital Living Network Alliance) is a technology standard that enables devices to share media files over a network. The NAS (Network Attached Storage) Promise Vess 1720i is a storage device that supports DLNA implementation, providing several features and functionalities for media management and accessibility. Here are some key aspects:
1. Media Server: The Promise Vess 1720i NAS acts as a media server, allowing users to store and organize their media files such as photos, videos, and music in a central location. This eliminates the need to store media on individual devices, making it easier to manage and access content.
2. Media Streaming: With DLNA, the NAS can stream media files to DLNA-enabled devices within the network. This means you can play videos on your smart TV, listen to music on your wireless speakers, or view photos on your tablet, all directly from the NAS without transferring files to each device separately.
3. Cross-Platform Compatibility: DLNA ensures compatibility between different devices and operating systems. The Promise Vess 1720i NAS supports DLNA, allowing seamless media sharing across various platforms, including Windows, macOS, iOS, and Android. This enables users to access their media files from different devices, regardless of the operating system.
4. Remote Access: DLNA implementation in the Promise Vess 1720i NAS enables remote access to media files. Users can access and stream their media content from outside their home network, provided they have an internet connection. This feature is particularly beneficial when traveling or when away from home.
5. Transcoding: The NAS may also offer transcoding capabilities, converting media files into a compatible format for the target device. For example, if a video file is not natively supported by a particular device, the NAS can transcode it on-the-fly to a format that the device can play. This ensures media accessibility across a wide range of devices.
Overall, DLNA implementation in the Promise Vess 1720i NAS simplifies media management by centralizing storage, improves accessibility by allowing streaming to various devices, and enhances compatibility between different platforms. It provides a convenient and efficient solution for organizing, accessing, and enjoying media files within a networked environment.