Use Number of checkpoint statistics (-numCheckpointStats) to specify the number of rows maintained in the_Checkpoint VST.

Operating system and syntax UNIX / Windows 
-numCheckpointStats n
Use with Maximum value Minimum value Single-user default Multi-user default
Database Server 1024 8 – 32
n
The number of checkpoints to track statistics for in the _Checkpoint VST.

The Number of checkpoint statistics (-numCheckpointStats) parameter may be modified while your database is online using PROMON or through the _DbParams VST.

You can use this parameter to support continuous operation of the database. For more information, see Change database parameters while the database is running.