VTAM startup fails with IST1218I ACB ERROR FIELD = 72

Technote (troubleshooting)


Problem(Abstract)

These messages were displayed when VTAM was started:


IST049I VTAM START REJECTED - OPEN FOR CP ACB FAILED

IST1218I ACB ERROR FIELD = 72

IST314I END

IST133I VTAM TERMINATION IN PROGRESS

IST105I ISTPDILU NODE NOW INACTIVE

IST105I ISTGROUP NODE NOW INACTIVE

IST412I VTAM COMMAND PROCESSING TERMINATED

Cause

The failure of the OPEN ACB for the VTAM control point (CP), as indicated by message IST049I, prevented VTAM from initializing. The hexadecimal code 72 displayed in message IST1218I is a value returned by the OPEN macro indicating that the reason for the OPEN ACB failure is that either VERIFYCP=REQUIRED or VERIFYCP=OPTIONAL was coded in the VTAM start option list, but one or more of the following prerequisites for those start options was not satisfied:

  • The security management product is installed.
  • The security management product is active.
  • The security management product resource class APPCLU is active.
  • The application represented by the ACB is in the security management product Started Procedures Table.

Resolving the problem

If you want to have either VERIFYCP=REQUIRED or VERIFYCP=OPTIONAL in your VTAM start option list, ensure that all of the above prerequisites are met. Doing so will eliminate the OPEN ACB error indicated by messages IST049I and IST1218I.

If, on the other hand, you do not want to have either VERIFYCP=REQUIRED or VERIFYCP=OPTIONAL in your VTAM start option list, either replace VERIFYCP=REQUIRED or VERIFYCP=OPTIONAL with VERIFYCP=NONE, or let VERIFYCP default to NONE.

Cross reference information
Segment Product Component Platform Version Edition
Networking VTAM for VSE/ESA and VM/ESA VM/ESA 4.2 All Editions

Product Alias/Synonym

VERIFYCP IST049I IST1218I

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Document information


More support for:

z/OS Communications Server
All

Software version:

1.8, 1.9, 1.10, 1.11, 1.12, 1.13, 2.1

Operating system(s):

z/OS

Software edition:

All Editions

Reference #:

1376525

Modified date:

2013-03-04

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