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Status Delivered
Workspace IBM i
Created by Guest
Created on Jul 7, 2017

SMB 3 (SMBv3) support needed in IBM i 7.3

for better integration of our windows 2012 and 2016 servers and for security issues we need SMBv3 in IBM i V7R3.

Use Case:

for better integration of our windows 2012 and 2016 servers and for security issues we need SMBv3 in IBM i V7R3.

Idea priority Medium
  • Guest
    Jun 11, 2019

    The IBM i NetServer and the QNTC file system support for SMB3 is included with the IBM i 7.4 release, which will be generally available on June 21, 2019. In general this will be transparent to most users.

    Some things to note:
    - The default for both QNTC and NetServer is to negotiate to the highest supported version of SMB
    - SMB3 implementation supports encryption of data, QNTC will use this if the server supports it, NetServer has this set as optional so its up to the client
    - Encryption can be configured on a share or for the entire server
    - GO NETS in 7.4 has been updated for the new SMB3 updates in the APIs. GO NETS must be set up again after the install of 7.4 to get the updates
    - If the environment variable QIBM_ZLC_SMB_VERS is defined and set to something other than 0, QNTC will not use SMB3 unless the value is changed or the environment variable is removed. See the following link for additional information.

    SMB3 cannot be supported in IBM i 7.3 or earlier due to system restrictions.

  • Guest
    Jul 27, 2018

    We understand this support is important. We will prioritize this with our other work.

    Thank you.

  • Guest
    Sep 21, 2017

    In order to understand the features of SMBv3 required for this request, please answer the following questions, thank you.

    Please be specific on what security issues require SMBv3 in IBM i 7.3.

    Are there specific problems with Windows 2012 and 2016 connecting to IBM that are causing integration issues?

  • Guest
    Aug 17, 2017

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - Power Systems
    Product - IBM i
    Component - IFS (Integrated File System) and Servers
    Operating system - IBM i
    Source - None

    For recording keeping, the previous attributes were:
    Brand - Servers and Systems Software
    Product family - Power Systems
    Product - IBM i
    Component - Core OS
    Operating system - IBM i
    Source - None

  • Guest
    Aug 15, 2017

    The CAAC has reviewed this requirement and recommends that IBM view this as a high priority requirement that is important to be addressed. There are security exposures that SMBv3 addresses; it is important that IBM i remain current with SMB technology.

    Background: The COMMON Americas Advisory Council (CAAC) members have a broad range of experience in working with small and medium-sized IBM i customers. CAAC has a key role in working with IBM i development to help assess the value and impact of individual RFEs on the broader IBM i community, and has therefore reviewed your RFE.

    For more information about CAAC, see

    For more details about CAAC's role with RFEs, see

    Dawn May - CAAC Program Manager