CBR0165I At least one object or object backup storage group has been encountered that is enabled to more than one system in a non-OAMplex environment. The definition of storage groups that are enabled to more than one system in a non-OAMplex environment is allowed due to the specification of SETOPT MULTISYSENABLE(YES) in the CBROAMxx parmlib member.

Explanation
 At least one object or object backup storage group
in the SMS ACDS is defined as enabled to the current system and at
least one more system is in the configuration. The definition of storage
groups that are enabled to multiple systems is allowed because of
the specification of the SETOPT MULTISYSENABLE(YES) command in the
CBROAMxx parmlib member.

System action
 The storage groups are added to the configuration.
OAM initialization continues.

System programmer response
 If you do not want object and object
backup storage group names enabled on multiple systems when running
in non-OAMplex mode, you must specify SETOPT MULTISYSENABLE(NO) or
remove the MULTISYSENABLE keyword on the SETOPT statement in the CBROAMxx
parmlib member to disallow the definition of storage groups that are
enabled to more than one system in a non-OAMplex environment. 
 See z/OS DFSMS OAM Planning, Installation, and Storage Administration Guide for Object Support for
more information about the MULTISYSENABLE keyword.

Source
 Object Access Method (OAM)

Routing Code
 2

Descriptor Code
 4