Preventing a member from processing requests

Transparently to users, you can prevent one or more members of a data sharing group from handling DDF requests while still letting those members make DDF requests.

Procedure

To prevent a member from handling DDF requests:

Use one of the following options:

Set the MAX REMOTE ACTIVE option of installation panel DSNTIPE to 0 for that member.
Dynamically change the value of the MAXDBAT subsystem parameter in macro DSN6SYSP to 0 for that member.

The MAX REMOTE ACTIVE installation panel option and the MAXDBAT subsystem parameter specify the maximum number of database access threads (DBATs) that can be active concurrently. By setting the value of either to 0, you restrict DDF server activity on the affected member. Subsequent connection requests are directed to those members whose MAX REMOTE ACTIVE option or MAXDBAT parameter value are greater than 0. Any work that is already in progress by the affected member continues, but new requests are directed to other members of the data sharing group.