How can I use this Client Automation functionality "Periodic Inventory Refresh"?
not sure what you are asking. if you have an agent it runs inventory once a day if configured OOB. If you mean run a full inventory vs. a delta inventory if you are on sp1 or above it does that OOB once a week.
This is a new feature of agent policy for r14.02:
General Availability Announcement for CA Client Automation 14.0 SP2
New features for CA Client Automation 14.0 SP2 include:...Periodic Inventory Refresh: A new configuration option is introduced that canbe used to specify the number of inventory collection cycles before an agentcollects and transports full inventory of the target system, instead of thedelta inventory. This helps in reconciling the inventory data, should any deltainventory updates be lost....
CA Client Automation - 14.0, Release Information 14.0.2 > New Features and Enhancements of 14.0.2 >Automated Inventory Recovery > Automated Inventory Recovery
"This policy option is available under the DSM, Agent, Asset Management,Collect full inventory path after specified number of agent runs. The defaultvalue is 0."
"Collects full hardware and software inventory after specified number of AM agentruns. Value 0 indicates the option is disabled. NOTE: This configuration shouldbe used carefully. It will effect the Engine and Network performance if smallintervals are specified."