The obvious reason is DIAGxx has AUTOIPL statement with that address. Maybe changed by SET command? Otherwise all I can think of is PPRC maybe can do this, but unlikely.
On Fri, Nov 5, 2021 at 11:43 AM Mark Jacobs < [email protected]> wrote: > 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 > > Sent from [ProtonMail](https://protonmail.com), Swiss-based encrypted > email. > > GPG Public Key - > https://api.protonmail.ch/pks/lookup?op=get&[email protected] > > ---------------------------------------------------------------------- > 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
