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Improve function for decompress of IMS type99 log using H/W component instead of MVS service
We plan to use IBM InfoSphere Data Replication for IMS for next disaster recovery system. It needs new IMS type99 log records for data replication at source system. The target system's CPU usage was dramatically increased. We would like to reduce CPU cost. IIDR for IMS apply service expands type99 log for database apply and it uses MVS decompression service now. IF this decompression workload is offload to H/W(zEDC or CSRCMPSC macro), some CPU cost will be reduced. Also if data compression ratio is improved by new compression, data transmission volume between capture side and apply side will be decreased and CPU cost will be decreased more. This new function might have to be optional function, in order to provide conventional user's compatibility. Note: Both IMS and IIDR for IMS need to apply this function simultaneously. (i.e. IMS for data compression and IIDR for IMS for data decompression)
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