When multiple logical servers are assigned to a single login policy, no
overlap in node membership is allowed among those logical servers, including the logical
membership of the coordinator.
An automatic membership overlap check is enforced during changes to:
- Logical server membership – if one or more member nodes are added to a logical server, each login policy
that allows access to this logical server is examined to ensure that the new
membership does not overlap with memberships of other logical servers assigned
to the login policy. Attempt to change a logical server membership fails if such
an overlap occurs.
- Logical server assignment of a login policy – if one or more user-defined logical servers are added to a login policy, a check
ensures that the new logical server assignment of the login policy does not
cause a membership overlap among assigned logical servers. Attempt to change
logical server assignment for a login policy fails if such an overlap
occurs.
Note: Logical servers can be defined with overlapping memberships as
long as they are not assigned to the same login policy.