W dniu 2011-04-26 22:37, john gilmore pisze:
The traditional limitation to 2^16-1 = 65535 tracks is one more instance of
control-block overflow, here that of in an unsigned halfword field.
PDS support is 'functionally stabilized', i.e., frozen. For this and other
reasons it is thus---with the well-known exceptions of system data sets that
must be accessed shortly after an IPL---it is now usually better to use PDSEs.
For some values of "usually".
Either kind of PDS have advantages and disadvantages. IMHO the main
disadvandage of PDSE is cross-sysplex sharing. BTW: PDS frozen - this is
rather advantage: the shortcomings are well known, all the features are
stable and unchanged.
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