After applying the latest round of CUM PTFs to a partition with IBM i 7.4 I noticed that the new save compression algorithm, ZLIB, is available. I was surprised as I was under the impression that ZLIB was only available for IBM i 7.5 . There is no mention of ZLIB in the help for the Save Objects command, SAVOBJ, data compression parameter’s help. Was this an oversight by IBM introducing something that was not compatible 7.4? This made me want to test it to see if it worked in 7.4, and if it did how much were the savings compared to the other types of data compression. I have before compared the savings I could get with the various compression algorithms. Now I could compare them all to the new ZLIB. Read more » Read More
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