Unlike (E)CSA and (E)SQA, (E)LSQA is not an "area", rather it is an "attribute".
(E)LSQA storage can land anywhere in the authorized part of the private space, depending on the sequence of obtains and their sizes. All authorized private is allocated top-down (at a broad stroke, since that may not apply to storage allocated within a partially-allocated area), whether it is LSQA or some authorized subpool such as 229/230. <snip> LDASTRTA is the start of 24 bit LSQA and LDASIZA is the size of 24 bit LSQA </snip> No it is not. Peter Relson z/OS Core Technology Design
