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I am noticing that DB2 or 'traditional' stuff really compresses when
saving to tape but stream file stuff doesn't.
I have one system that is primarily 'traditional' stuff and PRTERRLOG
TYPE(*VOLSTAT) VOLTYPE(3590) after a full system save says it fit
3,087,925 on one LTO4 tape and that got everything.
I have another system that's primarily stream file stuff and it only fit
1,024,936 on one tape and 689,570 on the second.
Full system saves, identical control groups. Saved with BRMS.
Perhaps stream file are generally more compressed while DB2 stuff keeps
all that non variable length data all filled with blanks and stuff.


Rob Berendt

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