In S/370 mode, you use that Start I/O (SIO) instruction and the only architected data you need to worry about are the Channel Address Word (CAW), channel Command Words (CCWs) and Channel Status Word (CSW). In XA, ESA and Z modes you need to deal with several other data, e.g., the Operation-Request Block (ORB). Compare the descriptions of I/O in <http://bitsavers.org/pdf/ibm/370/princOps/GA22-7000-7_IBM_System_370_Principles_of_Operation_8th_ed_198103.pdf>, <http://bitsavers.org/pdf/ibm/370/princOps/SA22-7085-1_370-XA_Principles_of_Operation_Jan87.pdf>, <http://bitsavers.org/pdf/ibm/370/princOps/SA22-7200-0_370-ESA_Principles_of_Operation_Aug88.pdf>. and, if you're curious, SA22-7801-9 for ESA/390 and SA22-7832-12 for z (-13 should be out shortly), although the big change is from S/370 to S/370-XA.
I would recommend downloading the manuals for the most recent z/OS and z/VM that will run on the Z114; disk and SSD don't cost that much these days. I'd also recommend taking backups of all HMC and SE data. Especially while you're still learning, it might help to take and organize copious notes. And remember that the only stupid question is the one that you should have asked but didn't; don't be afraid to ask if some of the documentation seems unintelligible. But whatever you do, have fun doing it. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of Enzo D'Amato [edam...@octechservices.org] Sent: Sunday, May 29, 2022 8:55 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: my new z114 Joe is correct that an ESA/390 lpar is the lowest option supported on the z114. I can run software up to z/OS 2.2, which came out in 2015. While this is old, I am not sure that it is quite bit savers old yet. I believe that manuals for this software version are still on the public internet (it is a section on IBM documentation). What additional complications are involved in programming for z/Archetecure and ESA/390 that you don't have to deal with on the lower ISA levels? Thank you, Enzo Damato ________________________________________ From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of Seymour J Metz <sme...@gmu.edu> Sent: Sunday, May 29, 2022 6:07 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: my new z114 When you ask IBM about licensing software old enough to run on that box, you might want to ask them whether it is possible to obtain softcopy manuals and training materials at the same levels. Also, you may be able to find a lot of the relevant manuals at the bitsaves web site. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of Enzo D'Amato [edam...@octechservices.org] Sent: Thursday, May 26, 2022 7:21 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: my new z114 I saw that Timothy Siples already posted this, but I wanted to share some more information about my new system, and my setup. I am currently a high school junior located in New York. For the last month or so, I have been in the process of acquiring a used z114 mainframe (you may have seen my other post about dasd for the machine). Yesterday, the machine finally arrived. If you want to see some pictures of the machine please do check out my reddit post here: https://secure-web.cisco.com/1CZItIYHeYY3-uraOprb1SqojHusTPmWTIG2Wz2teDumFhul97h-qbIpLQyGfH2SGOaW-mARuPoQt6FxTNPvs18rgJn4YMrXRGlMiYJMiMXetL6kRLsVkaREi03C_OzlkdvL5o2N7RKWdigGyvVleJLN96qzzy-6tJSF4i1NRT9G-jxb4t-eryfLXIit6rFuGT4EEzGL8xf_AHRJqCiaejRmn3TEhSmRd-3xUdSxieLHJshf-KW99yJS1PzbH7sDB8ZkE3oTAZHoD5EURxGMQUVWGsnJYFqaTn7F4hxHB-faeqWvmz_6Jv5SnXGktTD8pWPjIwUeRt6R8rCIx0hC4HOvMstxWWUjdvIoSrOCiB24/https%3A%2F%2Fwww.reddit.com%2Fr%2Fhomelab%2Fcomments%2Fuxsbef%2Fmy_new_z114%2F%3F%20At%20the%20time%20of%20writing%2C%20I%20have%20not%20powered%20up%20the%20machine%20yet%2C%20as%20I%20still%20have%20to%20run%20and%20connect%20the%20power%20to%20my%20220v%20supply.%20The%20HMC%20for%20my%20machine%20is%20also%20still%20in%20the%20mail%2C%20and%20I%20am%20expecting%20it%20sometime%20this%20weekend%2C%20or%20early%20next%20week.%20My%20main%20plan%20for%20the%20machine%20is%20to%20use%20it%20to%20learn%20everything%20there%20is%20to%20know%20about%20the%20platform%2C%20and%20learn%20the%20skills%20that%20I%20would%20need%20for%20a%20career%20in%20mainframe%20early.%20I%20am%20also%20trying%20to%20get%20into%20MIT%2C%20and%20having%20a%20unique%20accomplishment%20like%20this%20on%20your%20transcript%20can%20be%20a%20big%20help%20in%20that%20regard.%20Currently%2C%20I%20have%20a%20FC%20SAN%20for%20FBA%20storage%2C%20but%20I%20am%20still%20looking%20for%20CKD%20capable%20storage.%20My%20parents%20have%20allowed%20me%20to%20take%20up%20to%20three%20racks%2C%20so%20if%20you%20know%20of%20anyone%20trying%20to%20get%20rid%20of%20some%2C%20no%20matter%20how%20old%20it%20is%2C%20I%20will%20pay%20shipping%20to%20me.%20I%20expect%20to%20be%20posting%20alot%20more%20here%20as%20I%20deal%20with%20the%20myriad%20chalanges%20involved%20with%20getting%20the%20machine%20set%20up.%20If%20you%20have%20any%20questions%20you%20would%20like%20to%20ask%2C%20please%20feel%20free%20to%20do%20so.%20I%20will%20do%20my%20best%20to%20reply%20thoughout%20the%20day. Thank you, Enzo Damato ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
