Logical child delete rules

The following list describes what happens when a logical child is deleted when RULES=P, RULES=L, or RULES=V is specified.

• When RULES=P is specified, the logical child segment must be logically deleted first and physically deleted second. If physical deletion is attempted first, the DLET call issued against the segment or any of its physical parents results in a DX status code, and no segments are deleted. If a delete request is made against the segment as a result of propagation across a logical relationship, or if the segment is one of a physically paired set, then the rule acts like the L rule that follows.
• When RULES=L is specified, deletion of a logical child is effective for the path for which the delete was requested. Physical and logical deletion of the logical child can be performed in any order. The logical child and any physical dependents remain accessible from the non-deleted path.
• When RULES=V is specified, a logical child is both logically and physically deleted when it is deleted through either its logical or physical path (setting either the PD or LD bits sets both bits). If this rule is coded on only one logical child segment of a physically paired set, it acts like the L rule.