Currently ALTSYS is being used on the ACF2 record OPTS in GSO. The plans are to move all the SGP records to a masked SYSID of ****. At that time, is ALTSYS needed?
Release : 16.0
Component : CA ACF2 for z/OS
The only reason to use ALTSYS would be from reading in SGP records that are from a different SYSID record. If all the SGP records are under the masked SYSID(****) then the use of ALTSYS is moot as there are no other records to read in.