This panel allows you to select a mapping configuration alias for the resource that you are configuring. This panel is only available when security domains are defined. Security domains allow you to isolate mapping configuration aliases between servers. The tree view is useful in determining the security domain to which an alias belongs, and the tree view can help you determine the servers that will be able to access each authentication alias. The tree view is tailored for each resource, so domains and aliases are hidden when you cannot use them. For example, a cell-scoped security domain will be hidden from the tree if all servers and clusters in the tree have defined their own security domain. If you are looking for an alias that is not visible in the tree, it is because the alias cannot be used by any servers that have visibility to this resource. In this case, you must define the alias at the global scope or in a different security domain that is visible to this resource.
Avoid trouble: Be careful when selecting an alias, because
it is possible to select an alias that is only accessible by a subset
of the
servers that will use the resource. If you select a global alias,
you are
guaranteed that an alias by that name will be accessible to all users
of the
resource. If the alias has been overridden in a security domain, however,
that alias will be used instead of the global one. The tree view includes
icons to help you select the proper alias:
The alias is accessible by all servers that can access this
resource.
There is at least one
server that cannot access the alias. Check
the tree view to see if this is OK for the application that will be
using
this resource.
The alias is defined in multiple places.