----------------------<snip>----------------------
Not in our experience. We've tried all possible forms of I/O and LDS
was certainly the best when it comes to VSAM. zFS is implemented as
VSAM LDS files and I assume that they know what they are doing. from
recollectin ESDS and RRDS performance wasn't great by comparison, so
we dropped that exploration farily early on.
---------------------<unsnip>-------------------
How about BDAM Relative Record? Or BSAM using NOTE/POINT and TTR
addressing? BDAM is far an away the closest to EXCP in terms of
performance.
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