Subschema entries
Use this information to know about the subschema entries.
There is one subschema entry per server. All entries in the directory
have an implied subschemaSubentryattribute type.
The value of the subschemaSubentry attribute type
is the DN of the subschema entry that corresponds to the entry. All
entries under the same server share the subschema entry, and their subschemaSubentryattribute type
has the same value. The subschema entry has the hardcoded DN (cn=schema).
The subschema entry belongs to the object classes top, subschema,
and IBMsubschema. The IBMsubschema object
class has no MUST attributes, and one MAY attribute
type (IBMattributeTypes).