DB2 VTAM LUNAME field
The DB2 VTAM LUNAME setting identifies this Db2 subsystem within your network, identifies transactions for indoubt resolution, and correlates trace records. The LUNAME value must be unique for each member in a Db2 data sharing group. It is used to start SNA communications. TCP/IP communications are also started if TCP/IP PORT or SECURE PORT, or both, and RESYNC PORT are specified. To start TCP/IP communication only, specify DB2 TCP/IP IPNAME with TCP/IP PORT or SECURE PORT, or both, and specify RESYNC PORT.
| Acceptable values: | 1–8 alphanumeric characters, beginning with a letter and containing no special characters |
|---|---|
| Default: | none |
| Update: | see Updating subsystem parameters that cannot be updated by using DSNTIPB |
| DSNZPxxx: | none |
You must specify a value for this field.
If the DB2 TCP/IP IPNAME is set, TCP/IP communication is started but not SNA communications, regardless if there is a value for LUNAME. Inbound and outbound communications over TCP/IP are allowed, but Db2 makes no attempt to activate VTAM communications support.
