Parameter
dbs/db4/driver_type
Short text
Database driver type used by DBSL
Parameter Description
Choose the database driver (XDN or XDA). For more information, see SAP Note 1257635.
The currently active driver is visible in the developer trace (SM50), for example:
C driver = XDN (DBSLDirectDrive)
Application Area
Database
Default Value
XDN
Who is permitted to make changes?
DB administrator
Database System Restrictions
The parameter is only evaluated on DB2 for IBM i.
Are other parameters affected or dependent?
If dbs/db4/driver_type == XDA setting dbs/db4/allow_cancel= 1 will cause the SAP system to run three tier via Unix domain sockets. If dbs/db4/driver_type == XDN, dbs/db4/allow_cancel will be treated as if being set to ‘1’ although the connection type stays local.
Parameters dbs/db4/xdn_port, dbs/db4/xdn_trace_file, and dbs/db4/use_data_direct are only interpreted if dbs/db4/driver_type == XDN.
For more information about dbs/db4/connect_type see SAP Note 1257635.
If dbs/db4/driver_type == XDN, the SQL DA Cache size is set to 100, if dbs/db4/da_cache_size is set to ‘100’ or to ‘0’, and it is disabled if being set to ‘-1’.
If dbs/db4/driver_type == XDA, the SQL DA Cache size is also disabled, if dbs/db4/da_cache_size is set to ‘0’.
Values allowed
XDN, DBSLDirectDrive — Use XDN as a database client driver
XDA — Use XDA as a database client driver
