<http://bitsavers.org/pdf/ibm/370/VM_370/Release_6/GC20-1818-3_IBM_Virtual_Machine_Facility_370_CMS_Command_and_Macro_Reference_Rel_6_PLC_17_Apr81.pdf> doesn't list an option on the FORMAT command to select a new format file system.
Are the VM/370, VM/SE, VM/BSE, VM/SP, VM/XA (MA, SF and SP) and VM/ESA announcement letters and GI manuals available online? The bitsavers collection is incomplete and it is not always obvious what the relevant manuals are. Also, some of the manuals in bitsavers have updates for SEPP or BSEPP. Thanks. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of Alan Altmark [alan_altm...@us.ibm.com] Sent: Tuesday, May 11, 2021 5:03 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: When did CMS stop requiring S/370 mode? On Tue, 11 May 2021 12:49:47 +0000, Seymour J Metz <sme...@gmu.edu> wrote: >Thanks; I asked because I was editing >https://secure-web.cisco.com/1qF3LLRjAEjPJv5KtUV-K9CbO4DnYgfRDo3ZSn1_xMxR7CtneI9X3pixEXbrKcDZXzfqpnNoc0FBg3JqkhcKHjjbf71_VSHQD8uVF5nhT5s0z1he266mbm8-gs0sjGTNLlIOwftwnw_hTxQFIcq-Q2A42YRn1D3I_5DVuBtOuesPYzEP7j9rZjdkzwQI5_fJHluqQh1R8srPdb7LxBx3Q5vDyJd2JiLunB2Nnz5W48ZqHtzHHkPII6j_mK3JuSCbqISFs0BpcrnDg6FlhbB-odGoWTCEM1m-xf-ZyxtoUGjs5zBvo0Y4WCpjuFPeJOCSnIvDAGt7Ax9V-Ja7Kql3dlPAMI_baDl4USLIWrr9_4HMh877LoYO5mAEqW6ofuCnXc1DBqfyRbK2G1u1dqX7IgvMXsn0sNrKQkDZhEqvxO3u2u1rpaRA7nhoToxpTrfNr/https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FCMS_file_system > and there was a footnote > referring to cuu addresses. I've added some text that I hope puts things in > context. There are other issues with that article. In CP-67 and in the earlier releases of VM/370, there was indeed a limit of 6 file modes. In VM/370 those limits were relieved; you can see TNLs that did it in the VM/370 manuals on Bitsavers. The FST format shown is from the CDF file system. EDF was part of SEPP or BSEPP ([Basic] System Extensions Program Product, I think), which was eventually integrated into VM/370, also visible in the VM/370 manual evolution. With EDF, those halfword fields weren't large enough, so the FST was expanded. >Are there online documents listing the change dates? If so, I probably should >add citations. The announcement letters for each release along with the associated General Information manual let you piece together what was possible in each release. And sorry if I wasn't clear about 370 mode. z/VM 3.1 could *run* CMS/370, but we stopped shipping it in Version 2. Announcement 294-159 for VM/ESA [Version 1] Release 2.2 (6 April 1994) said: "The CMS in VM/ESA Release 2.2 is the last release of CMS to run in a 370-mode virtual machine. Users still needing 370-mode CMS support are encouraged to run their 370 applications using the 370 Accommodation facility which became available in VM/ESA Release 2.1. 370-mode virtual machines will continue to be provided for use by guest operating systems and by applications which do not run on CMS. Many 370 applications can run unaltered in XA/XC mode. By testing the applications with 370 accommodation, customer can be assured their applications will run in XA/XC virtual machines under future releases of CMS." Announcement 294-524 (13 Sept 1994) for VM/ESA Version 2 Release 1 (GA Oct 1995) had this to say: "The CMS in VM/ESA Version 1 Release 2.2 (CMS 11) is the last release of CMS to run in a 370 mode virtual machine. The CMS in VM/ESA Version 2 (CMS 12) will not IPL in a 370 mode virtual machine. The removal of the 370-mode CMS helps to provide relief for storage constraints below the 16MB line. One megabyte of the CMS nucleus that was previously below the 16MB line will be moved above the line. 370 mode virtual machines will continue to be provided by CP for use by guest operating systems, applications that do not run on CMS, and previous releases of CMS. Users needing support for 370-mode applications are encouraged to run those applications using the 370 accommodation feature which became available in VM/ESA Version 1 Release 2.1. Verifying the execution of applications with the 370 accommodation feature allow customers to position those applications to run in XA or XC mode virtual machines under VM/ESA Version 2 and future releases of CMS." Alan Altmark IBM ---------------------------------------------------------------------- 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
