IST1288I TOPOLOGY DATASET RETRIEVAL WAS NOT SUCCESSFUL, CODE = 2

For z/VM the equivalent messages issued are:

GCTSOP308W OPEN error '23' on 'TRSDB'
IST1288I TOPOLOGY DATASET RETRIEVAL WAS NOT SUCCESSFUL, CODE = 2
GCTSOP308W OPEN error '23' on 'DSDBCTRL'
GCTSOP308W OPEN error '12' on 'DSDBCTRL'
GCTSOP308W OPEN error '23' on 'DSDB1'
GCTSOP308W OPEN error '23' on 'DSDB2'

Message IST1288I may be issued on a z/VSE system as well.

The first IEC130I message, together with the Code 2 on IST1288I, indicates that the TRSDB dataset, which is the APPN network topology database, is not defined. In addition, the remaining IEC130I messages indicate that the APPN directory services checkpointing datasets - DSDB1, DSDB2, and DSDBCTRL - are also not defined.

The messages issued indicate that you have not prepared the required APPN checkpointing datasets. When initializing VTAM as an APPN network node, these messages are issued if INITDB=ALL was specified as a VTAM start option or if you took the default value of ALL for the INITDB start option.

To use the APPN checkpointing datasets, follow the instructions for your operating system for defining them:

• z/OS: Instructions for defining these data sets are found in the z/OS V1R11.0 Communications Server New Function Summary (GC31-8771-05) in section 1.6.1.7 APPN checkpointing data sets.

• z/VM: Review the directions given in Section 1.3.2.4 Checkpointing APPN Data Files of the VTAM V4R2 Network Implementation Guide (SC31-6494-01).

• z/VSE: Review the directions given in Section 1.4.3.1.2 Checkpointing APPN Data Files of the VTAM V4R2 Network Implementation Guide (SC31-6494-01). A sample job stream defining the four VSE/VSAM files is found in section 11.4 VSE/VSAM Files for Directory Data Base of z/VSE V4R1.0 Networking Support (SC33-8311-00).

If, however, you prefer not to use the APPN checkpointing datasets, specify INITDB=NONE as an option in your VTAM start option list.