Message VAN0289E ACB SAMSACB did not Open, Error Code 5A in the CA Vantage Started task log.
Release : 14.0
Component : CA Vantage Storage Resource Manager
PARMLIB(CONFIG) parameter COMP=SNA is causing this if VIEW/3270 is not being used
PARMLIB(CONFIG) parameter COMP=SNA can be changed to a comment if VIEW/3270 is not being used
https://techdocs.broadcom.com/us/en/ca-mainframe-software/performance-and-storage/ca-vantage-storage-resource-manager/14-0/reference/messages/general-messages-vannnnnt/van0201e-van0289e/van0289e.html
The x'5A' return code means "No entry is found in the VTAM configuration tables.