Target volume definition parameters

The parameters for target data sets and volumes that are required for Step 4 are described in the following list.

Target Data Set Name HLQ

Enter the high-level qualifier (HLQ) defined for the zDMF data set names.

Select unique target data set HLQs and restrict access to these HLQs to the zDMF server, to ensure that the target data sets are not intentionally or unintentionally accessed or deleted during migration processing. For more information about security, see Security and the System Authorization Facility (SAF).

zDMF automatically generates the data set names in the following format:

HLQ.KSDNNE2.D8081.T1017558.S00001 

Where:

• The first qualifier is the HLQ that you provided;
• The second qualifier is the group name;
• The third qualifier is the day when the data set was created in julian format; in this example, D8081 is 2008, March 21.
• The fourth qualifier is the time;
• The fifth qualifier is the number that is assigned to the data set according to the sequence order, from 1 to 65535.

Consolidate Extents on Target Volume(s)

Use this option to request for multiple source extent data sets to be consolidated into fewer target extents. Reducing the number of extents allows greater data set expansion capability and reduces volume fragmentation.

Valid input characters are Y and N:

• Y consolidates the extents on one or more selected target volumes.
• N does not consolidate the extents on one or more selected target volumes, so you have the same number of extents as the source volumes.

Consolidate All

This option reduces the number of volumes of the target data set and reduces the number of extents on the remaining allocated volumes for source data sets spanning on multiple volumes. Volume consolidation is not completed if the source data set is on a single volume.

This option includes and takes precedence over the previous option, Consolidate Extents on Target Volume(s).

Valid input characters are Y and N:

• Y attempts to consolidate target volumes.
• N does not attempt to consolidate target volumes.
  Note: Consolidate All and Migrate Only Specified Volumes cannot be set to YES in the same group definition. Attempts to promote a group with both parameters set to YES result in an error message.

Tolerate Target Allocation Failure

Valid input characters are Y and N:

• Y indicates that group activation continues and the source data set is marked skipped. All skipped data sets contain a reason code/short message that indicates the reason it was skipped. This message can be displayed by using the data set display commands in the TSO Monitor or MVS™ console commands.
• N indicates that group activation is terminated if zDMF is unable to create a target data set for any of the source data sets that were not marked as skipped during source selection.

Note: The Tolerate Target Allocation Failure parameter that is displayed in the TSO Monitor Option 1 is identical to the TOLERATE_TARGET_CREATE_FAILURE CLI parameter (see TOLERATE_TARGET_CREATE_FAILURE | TOL_TGT_CRT_FAIL | TTCF).

Target Volume Storage Class

Enter the storage class for one or more target volumes. This parameter substitutes this SMS storage class for the existing storage class that is associated with the source data set in the source/target data set pair.

Note: Local SMS ACS routines might place the target data set in a storage class other than the storage class that is specified by this parameter. As with all SMS data sets, specifying storage class is only a suggestion to SMS, and might or might not be accepted by SMS. If an existing target data set is reused, its relevant storage class information is not changed.

Target Volume(s)

Enter the serial number of the volume where one or more target data sets are located. You may specify up to 59 target volumes in a group. If you specified less than 59 volumes and want to add more volumes later, refer to Modifying a group definition to add more target volumes.

Note: Esoteric name and unit name are not valid values for the Target Volume parameter. This parameter is an absolute volume name; no masking is supported.