Jack Kelly wrote:
I thought that I understood this option until a user came in.
Researching this issue, I discovered, what everyone else probably knows
but, Dynamic Vol addition doesn't occur if there's no secondary allocation
requested, eg SPACE=(TRK,(10,0)). This was obfuscated by Syncsort's
wannabee ICETOOL which appears to extend allocation and extents without
Dataclas.
Just thought someone else may appreciate this peril.
You've got what you wanted. No secondary allocation means no extents
(except primary allocation) - secondary volumes is "extension" of
secondary extents. In most cases you have 1 primary extent on first
volume and only secondary extents on other volumes (and first as well).
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