dbs/ora/tnsname_standby is a SAP Parameter attribute which is used to control Service Name for a Standby Database Instance (Oracle SQL*NET V2) information. This is available within R/3 SAP systems depending on the version and release level.
Below is the standard documentation available and a few details of the attributes values .
dbs/ora/tnsname_standby profile paramerter attributes
Parameter Name: dbs/ora/tnsname_standby
Description: Service Name for a Standby Database Instance (Oracle SQL*NET V2)
Default Value:
Parameter Type ( See
IF_PARAMETER_TYPES)
: String(STRING)
Restriction Values:
Parameter Unit:
Parameter Group: Database
CSN Component: BC-DB-ORA
System-Wide parameter: No
Dynamic Parameter: No
Vector Parameter: No
Has Sub-Parameters: No
Check Function Exists: No
Parameter documentation
If more than one Oracle database instance has been installed (Oracle
Parallel Server Option) and SQL*NET V2 is used, the above parameter can
be used to define a standby database instance for the respective
application server in each application server profile. If the profile
parameter rsdb/reco_trials> is set for the
database reconnect without restarting the work process, the DB reconnect
automatically takes place on the defined standby database instance if
the original database instance of the application server can no longer
be reached.
See SAP Parameter Documentation for full SAP documentation for this profile parameter.