Okay, thanks! (I appreciate your overview it is very helpful - I hate flying blind. :-) ) It will be on a cloned RES maintenance pack which will be swapped when we try to implement all the maintenance we just put on.
Thanks again! Mary -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Richard Peurifoy Sent: Wednesday, June 11, 2008 6:00 PM To: IBM-MAIN@BAMA.UA.EDU Subject: Re: IPL Text Yukus, Mary J CIV USMEPCOM wrote: > One more question on this subject, once this job executes, is there a data > set that gets updated that I can verify it worked? Will it always reside on > the RES volume? (somewhere in the back of my memory I seem to remember my old > boss mentioning that we put it on a different volume, not the RES) I may be > thinking of something else, but would like to feel a little more confident. > How do I know it was successful? I know (think) that SYS1.NUCLEUS fits in > here somewhere. The IPL text is written onto track 0 of the RES volume. SYS1.NUCLEUS must also be on this volume. When you IPL the machine will start an I/O operation to read the bootstrap from track 0. This bootstrap consists of a PSW and CCW's to read the IPL text (including more CCW's), and then commnand chain to the newly read CCW's. After the CCW chain is complete, the PSW will be loaded and start executing the loaded program. This in turn will search for SYS1.NUCLEUS and start loading the system. Gets much more complicated, but this is a basic overview. If the ICKDSF completed normally, it should have written the IPL text. You should be doing this on a clone of your system so that if there is a problem you still have a RES volume you can IPL. -- Richard ---------------------------------------------------------------------- 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
