If the Multiprise books were useful, then these related books (in BookManager format) from the IBM Publications Library might help:
https://publibfp.dhe.ibm.com/epubs/book/id2d0d03.boo SA24-4260-03 Internal Disk Subsystem Reference Guide, S/390 https://publibfp.dhe.ibm.com/epubs/book/id2d0s03.boo SA24-4261-03 Internal Disk Subsystem User's Guide, S/390 (The IBM Publications Center has been "sunset" for some reason but the books to which it provided access are still there. We have asked for some alternative method of access to be set up but in the meantime I not only managed to obtain a list of many of them - mostly the ones in English - but I also had a previous index which I created by by doing a search for everything in the previous IBM Online Library, and I found that many more of those books were also available even though they were not in the IBM Publications Center index). Jonathan Scott, HLASM IBM Hursley, UK
