We had a 084 RC 0C wait state on that lpar, and no I didn't take a SAD. I can fully grok that one of our developers overlayed storage. Thanks for the information.
Mark Jacobs Sent from ProtonMail, Swiss-based encrypted email. GPG Public Key - https://api.protonmail.ch/pks/lookup?op=get&[email protected] ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On Thursday, November 4th, 2021 at 11:46 PM, Jim Mulder <[email protected]> wrote: > Why did the system go into a wait state? > > Was a standalone dump taken? > > When we process a DIAGxx that specifies MVS(LAST), we copy > > CVTSYSAD into DgnbAIMvsUCBAddr (in SYS1.MODGEN(IGVDGNB)). > > When we try to AutoIPL that MVS, we get the device number from > > UCBCHAN in the UCB pointed to by DgnbAIMvsUCBAddr. > > So a storage overlay of DgnbAIMvsUCBAddr or of UCBCHAN would > > result in a wrong device number being used for AutoIPL. > > Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp. > > Poughkeepsie NY > > "IBM Mainframe Discussion List" [email protected] wrote on > > 11/04/2021 08:42:46 PM: > > > From: "Mark Jacobs" [email protected] > > > > To: [email protected] > > > > Date: 11/04/2021 11:38 PM > > > > Subject: AutoIPL Failure, just curious > > > > Sent by: "IBM Mainframe Discussion List" [email protected] > > > > One of out systems went into a wait state today and autoipl was > > > > attempted. It failed with this message (from the HMC Hardware Events > > log) > > > A load failure occurred on logical partition XXXX because a device > > > > address control block (DACB) was not found. Unit address = 5810. > > > > That unit address is not in our IODF. A manual activation was needed > > > > to bring it back up. I'm just curious how/why this error occurred. > > > > Mark Jacobs > > -- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
