Modifying IFI READS calls for IFCID 0306 to indicate that the expansion dictionary is in the compression dictionary data set
When you switch from using an expansion dictionary in a table space to using an expansion dictionary in the compression dictionary data set, modify your programs that issue IFI READS calls for IFCID 0306 to capture compressed log records.
Before you begin
Before you can use the expansion dictionary in the compression dictionary data set (CDDS) to decompress table space data in retrieved log records, you need to perform the tasks that are described in Storing the expansion dictionary for compressed log records in the compression dictionary data set.
Procedure
To modify an IFI READS call for IFCID 0306 to use the expansion dictionary in the CDDS:
Specify one of the following values in the WQALLCRI field in the IFI qualification area. 
- X'05' (WQALLCR5)
- Only log records for changed data capture and unit of recovery control. Compressed records are decompressed using expansion dictionaries that are stored in the compression dictionary data set (CDDS). This value does not apply to the proxy data sharing group in a GDPS® Continuous Availability with zero data loss environment.
- X'06' (WQALLCR6)
- All types of log records. Compressed records are decompressed using expansion dictionaries that are stored in the CDDS. This value does not apply to the proxy data sharing group in a GDPS Continuous Availability with zero data loss environment.
