Doug Werth wrote (with respect to detail data set capacity changes):
>This is true except for one case. If the capacity change of the detail
>lowers the capacity below the current high-water mark then at least some of
>the entries will be resequenced.
>
 
Actually, I don't know of any utility which will even permit you to reduce
the capacity below its highwater mark. You will be forced to first do a
dataset repack - which of course will reorder the detail entries - and thus
require a logging cycle reset (or refresh, if you prefer).
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