In Microsoft Host Integration Server, when you use the SNACFG.exe command line tool to assign individual logical units (LUs) or LU pools to a Windows group, the command fails if the name of the group contains 20 or more characters.
The fix that resolves this problem is included in the following cumulative updates for Host Integration Server:
Cumulative Update 2 for Host Integration Server 2016
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Learn about the terminology Microsoft uses to describe software updates.