Certain configuration parameters must be set to the same
value on both database servers in a HDR replication pair (as listed
under Database server configuration requirements for clusters.) Configuration
parameters that can have different values on each database server
can be changed individually.
To make changes to onconfig files:
- Bring each database server offline with the onmode
-k option.
If automatic failover by Connection
Managers or automatic switchover from DRAUTO settings of 1 or 2 are
enabled, bring the HDR secondary server offline first.
- Change the parameters on each database server.
- Starting with the database server that was last brought
offline, bring each database server back online.
For example, if you brought the HDR secondary database server
offline last, bring the HDR secondary database server online first. Table 1 lists
the procedures for bringing the primary and secondary database servers
back online.