StorageTek Host Software Component 6 User Manual

1st ed., 6/30/04 - 312579601

The RECDEF control statement, in combination with the CDSDEF control statement 
(refer to “CDS Definition (CDSDEF) Control Statement” on page 87), defines which CDS 
copies are to be used when running the Reconfiguration utility. CDSDEF specifies the old 
input copies of the CDS; RECDEF the new copies. 

Note: RECDEF parameters replace the DBPRMNEW and DBSHDNEW DD statements 
used in previous releases. A new standby CDS created by the SLICREAT program (refer 
to Chapter 7, ‘‘Allocating and Initializing Control Data Sets’’ in the HSC Installation 
Guide) is not affected by reconfiguration. It becomes valid once it is enabled by the HSC. 

initiates the control statement.

dataset.name is the name of a newly created HSC CDS. At least one DSN parameter 
must be specified; as many as two can be specified. The first DSN becomes the 
primary CDS. If specified, the next DSN is created as an identical copy of the 
primary CDS. 

RECDEF DSNs are input for the first HSC initialization as CDSDEF control 
statements. DSNs can be entered in any order whether or not this is the first 
initialization. Order is not important, since all copies are identical after the 
reconfiguration and controlling information is kept in each CDS for subsequent runs. 

optionally, volser is the volume serial number of the DASD volume where the 
specified CDS resides. The VOL parameter must be specified in VM. 

optionally, unitname is used to specify the unit parameter in the SVC99 dynamic 
allocation parameter list. The UNIT parameter must be specified in VM.