Version 10.5 includes
changed functionality that affects how you administer and work with DB2® databases.
Initializing HADR has changed
As of Version 10.5,
the steps for initializing your HADR databases have changed. You should
now use the hadr_target_list configuration parameter
even if you are only configuring one standby.
HADR log spooling is now enabled by default
HADR log spooling is now enabled by default. The hadr_spool_limit database
configuration parameter, which specifies log spooling behavior, now
has a default setting of AUTOMATIC.