The allocation attributes of the partial condense files, which are variable-blocked (VB) sequential data sets, are controlled by the following parameters:

The only required parameter is EXT_CAPT_MASK. Any combination of the remaining parameters is allowed. The following parameters have default values provided by PowerExchange:

If some or all volume and space allocation parameters are omitted, the partial condense file allocations may still succeed, depending upon the MVS/SMS configuration on the system.

It is also possible for the data set allocation to succeed but for the data set to be unusable. For example, if no space allocation parameters are provided in CAPTPARM or DBMOVER, none is passed on the dynamic allocation request. If the MVS system on which this occurs does not have space allocation defaults defined, the data set is created with a primary and secondary space allocation value of 0. The data set is successfully created but when the Condense job attempts to write to this data set, it fails.