On Tue, Jan 28, 2014 at 8:15 PM, Govind Chettiar <[email protected]> wrote:
> A contractor who joined our team said that in his previous place of > employment he could have multiple TSO sessions each of which used the same > userid and password, so he used to have multiple instances of his TN3270 > emulator running and a different TSO session in each. > > I am curious to know how this is possible...can anyone explain? > > My b/g is Cobol application development, so not versed with VTAM etc, so > bear with me! > > We allow some users to be able to log on to TSO on separate system images. But only once per system image. We do this by having ISPF set up properly, as documented in the books. And by not propagating the SYSIJKUA enqueue for _specific_ users across the SYSPLEX. This is done with coding in the GRSRNLnn member of PARMLIB, similar to: RNLDEF RNL(INCL) TYPE(GENERIC) QNAME(SYSIKJUA) RNLDEF RNL(EXCL) TYPE(PATTERN) QNAME(SYSIKJUA) RNAME(XYZ*) RNLDEF RNL(EXCL) TYPE(PATTERN) QNAME(SYSIKJUA) RNAME(AAA*) ISPF book: http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/ISPZPC90/1.3.3 === Now, there is a way to do what you seem to say: log a single RACF id on multiple times on a single system image. This is done using the TSO IKJEFLD or IKJEFLD1 "pre prompt" exit. There is a bit called the "Don't ENQ User Id" bit - byte 1, bit 4 of the "Control Switches". Documented here: http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/IKJ4B4A0/3.3.11.6.1 <quote> *Don't* *ENQ* *User* *ID* The exit sets this bit on to tell the logon processor not to ENQ on the user ID. If the exit sets the Don't ENQ User ID bit on, it must also set the No UADS bit on and supply the following information: - System attributes - User attributes (if your installation uses user attributes) - Generic unit - UPT </quote> There may be such a beast available on the CBTTape. -- Wasn't there something about a PASCAL programmer knowing the value of everything and the Wirth of nothing? Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
