zEDC Compression: DFSMShsm Sample Implementation

An IBM Redpaper publication

Published 07 April 2015, updated 29 March 2018

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IBM Form #: REDP-5158-00
(12 pages)

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Authors: Keith Winnard, Gert Laumann, Jose Gilberto Biondo Jr


Before the announcement of zEDC hardware compression, DFSMShsm was already able to compress migration and backup data using its own compaction (based on Huffman frequency Encoding algorithm) on disk and tape data. This Redpaper shares a sample implementation of zEDC hardware compression performed in a controlled test environment and looks at the impact of zEDC compression up to Migration Level 1.

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