Years ago there was a Program Logic Manual (PLM) for SVS OPEN/CLOSE/EOV. If you can find one of those it will give you a good idea of how it works today. Details may change, but I don't think the basic flow has. In the last set of microfiche they provided, the IBM code had not changed much from MVT. There were still comments in it about changes made for MVT.
Bottom line - IBM wants all that to be a 'black box' to the outside world and for you not to mess with. Christopher Y. Blaicher Senior Software Developer Austin Development Lab phone: 512.340.6154 mobile: 512.627.3803 fax: 512.340.6647 10431 Morado Circle Austin, TX 78759 -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of MONTERO ROMERO, ENRIQUE ELOI Sent: Thursday, August 25, 2011 5:26 AM To: [email protected] Subject: tape alloc workflow or diagram Hi, I am looking for a diagram or workflow which explains how tape allocationas are performed. i mean, when the job/program asks for a tape unit, which components have to work to give the tape to the program (RMM, Operative System, HSM, Catalog,...). Is there some IBM manual that explains it? Best regards, Enrique Montero ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html

