SMB3 server implementation for Storage systems

NQ™ Storage

In today’s heterogeneous environment of data centers, where both Windows and non-Windows platforms are concurrently used, the SMB implementation (formerly known as CIFS) becomes essential for data centers in a non-Windows environment. Since the SMB protocol is only native to the Windows world, Visuality Systems developed and released a portable SMB Server that can be integrated into any storage solution. NQ™ Storage inherited its technology from the embedded SMB solution, YNQ™, which runs in millions of scanners, printers, home routers and other devices.

NQ™ Storage is a commercial, high performance SMB stack that offers flexible integration for a wide range of storage services, from standalone NAS to high-end data centers.

You can download the white paper on NQ™ Storage here.

NQ Storage architecture for a standalone server:

NQ Storage Standalone Server

NQ Storage architecture for a clustering storage system:

NQ Storage for Clustering Storage System

Through the implementation of the latest SMB dialects, NQ™ Storage is the ultimate SMB storage solution in the market today. In contrast to the open source Samba, NQ™ Storage is not process based but thread based, which allows the capability of handling heavy loads in terms of thousands of client connections, numerous open files, etc., while having a very low resource consumption.

NQ™ Storage uses thread pools, internal memory management (pre-allocated buffers), zero copy for payloads of read and write operations, and server side operations such as file copying, zeroing and remapping to minimize network traffic. This makes it ideal for boosting performance when used with advanced applications such as Hyper-V and SQL Server.

NQ™ Storage fully complies with Microsoft SMB2 and SMB3 specifications. This includes such essential features as Domain Authentication (aka Active Directory) and others. The compliance is guaranteed by testing with the Microsoft Protocol Test Suite. NQ™ Storage supports all SMB dialects up to 3.1.1. This grants connectivity from all latest client versions of Microsoft, Apple Macintosh and Samba.


NQ™ Storage Markets

  • High-end data centers
  • Storage solutions
  • Cloud storage
  • Media storage
  • Standalone servers

NQ™ Storage Target OS

  • Linux/Unix
  • Solaris
  • VxWorks
  • Highly portable to virtually any operating system

NQ™ Storage 1.00 highlights

  • Designed for maximum performance
  • Scalable for a wide range of usage and loads
  • Supports all SMB dialects up to SMB 3.1.1
  • Advanced prototype for RDMA solution (will be fully tested in next version)
  • Quality tested with Microsoft Protocol Test Suite, user experience tool, negative testing and load testing
  • Complies with all relevant Microsoft specifications
  • Comes with a reliable support package

Follow Us


May 06, 2019

Visuality Systems has announced the release of the new generation Embedded NQ product - YNQ™. Developed under Agile methodology YNQ™ offers customers a shorter time to Market with an upgraded modular design allowing for straight-forward integration to any embedded device.


 March 08, 2019

Visuality Systems Visuality Systems announces the release of the latest version of jNQ, the Java SMB client library, version 1.0.2-br-5.  This version includes a number of new features: internal packet capture including IPv6, DNS and Netbios traffic, an enhanced mount command, and an enhanced directory lookup with pattern matching. In addition, many bugs have been fixed.


 November 26, 2018

Visuality Systems announces the transition to the Agile Development System which part of the many advantages include delivery of fully tested Visuality updates in a very short time cycle. Furthermore, Visuality Systems has established an online Help Desk that offers a simple and efficient customer interaction with the Visuality Systems technical support team

Helpdesk Registration


 November 06, 2018

Visuality Systems will be a sponsor at the SDC EMEA conference to be held at the Sheraton hotel, Tel-Aviv, Israel on January 30. The event will be co-located with an SMB3 testing Plugfest held on January 28-31.

See Link


   August 12, 2018

Windows XP and Server 2003 users can now seamlessly upgrade from the now-defunct SMB1 stack to the encrypted up to date SMB3 protocol with the latest NQE Server. 


  July 31, 2018

Visuality Systems has released jNQ™ 1.0.1 adding security features and performance improvements to the SMB3.1.1 NQ Java library.