Filter
Top Products
316 VM/HSC 6.0 System Programmer’s Guide
1st ed., 6/30/04 - 312579601
The journals contain a record of all transactions that update the control data set.
There are two journals per host. It is recommended that they are placed on
separate HDAs from the primary control data set DASD volume.
SHADOW
specifies that there is to be two distinct copies of the control data set (primary
and secondary) for recovery purposes. It is recommended that these data sets
reside on separate HDAs and separate strings. A journal is not recorded.
BOTH
specifies that two distinct copies of the control data set (primary and secondary)
and journals are specified for recovery purposes. Default is BOTH.
STANDBY
specifies that primary, secondary, and standby control data sets are to be
recorded for recovery purposes. No journals are recorded during HSC
operation.
ALL
specifies that all control data sets (primary, secondary, and standby) and
journals are to be kept and available for recovery purposes.
SET TCHNIQE PROCEDURE
Use the following procedure to invoke the TCHNIQE utility and to set the appropriate
recovery technique value:
1. ALLOCATE, based on existing CDS definitions, any new CDS copies that will be
needed for the subsequent SET recovery technique.
2. Stop the HSCs on all hosts configured to use the CDS you are intending to update
with SET recovery technique.
3. Run the BACKup utility.
4. Run the RESTore utility to restore all CDS copies required to support the current
recovery technique. If the recovery technique update in the following step requires
new CDS copies, then include them in this restore.
5. Run the SET utility with the appropriate recovery technique value. It is important to
note that the SET utility for this recovery technique update must include /FILE
statements for all CDS copies defined in either the old or the new recovery
technique.
6. Run the BACKup utility again. This backup provides you with the ability to restore
the updated CDS.
JCL Requirements
The following definitions apply to the JCL for SET utilities:
SLSPRINT
output messages from the utility program.
Set