Installing and Using Standby Statspack in 11g (by active Data Guard)

Statspack cannot be executed on a standby Database due to its read-only nature therefore tuning the performance of the apply process involves manually collecting statistics.

In the new Active Data Guard option, users can now use statspack from the primary database to collect data from a standby database that is opened read-only and performing recovery. The standby statspack is installed in a separate schema on the Primary database, STDBYPERF which is then propagated to the standby. This user "STDBYPERF" user does not have DBA privileges and has no access to local V$ tables.