SDEP_VALIDATION

Use the SDEP_VALIDATION keyword to select the method used by the analysis function to perform logical validation of pointers to sequential dependent (SDEP) segments.

Use

SDEP_VALIDATION is an optional keyword for the following commands:

ANALYZE
CHANGE
EXTEND
GLOBAL
IMAGECOPY
PREPARE
RELOAD
REORGANIZE

Related keywords

EXTEND_IOVF_#UOWS
ORPHANED_SDEP_MSG
POINTER_VALIDATION
RAP_VALIDATION

Syntax

SDEP_VALIDATION=parameter

Parameters

Specify one of the following parameter values:

Value	Description
FULL	This value performs a complete cross-reference validation of every pointer and segment occurrence. All pointers are checked to ensure that a segment occurrence appears at the referenced location. The complete chain of sequential dependents associated with the root segment is identified. FULL validation also ensures that every segment occurrence is referenced by only one pointer.
QUICK	This value generates a checksum for all sequential dependents within an area. The checksum consists of the sum of the RBAs for each segment occurrence minus the RBAs of all SDEP pointers. Because there should be one and only one pointer to each segment, the resultant checksum is zero if no errors are present.
OFF	This value specifies that pointers for SDEPs will not be validated by either of the methods listed above. The analysis process performs physical validation of the area and gathers statistics for reporting.
NONE	This value specifies that no processing is to be performed on the data within SDEP segment control intervals.

Default

For the EXTEND and REORGANIZE commands, the default value is NONE unless the EXTEND_IOVF_#UOWS keyword specifies a value greater than zero.

For all other commands, the default value is NONE if the DEDB being processed does not have an SDEP segment defined. If an SDEP segment is defined for the DEDB being processed, the default value is set automatically to match the POINTER_VALIDATION keyword value.

Alias

None