Command summary

Creating recording sessions

Use these commands to create a recording session:

• hs_create_recording_session – defines the characteristics of a recording session.

• hs_create_view – defines a view, which is a collection of data to record.

• hs_create_filter – specifies filtering criteria on a data item.

• hs_create_alarm – specifies a threshold value for a data item that triggers an alarm action.

• hs_initiate_recording – ends recording session definition and enables recording to begin at its predefined start time.

• hs_terminate_recording – stops a recording session.

Viewing recording session definitions

• hs_list – lists all of the views defined for a recording session and their data items.

Creating a playback session

Use these commands to create a playback session:

• hs_create_playback_session – defines the characteristics of a playback session

• hs_create_playback_view – specifies one or more views from the input recording session(s) to include in the playback session.

• hs_initiate_playback – ends playback session definition. Also starts playback to a file.

• hs_playback_sample – plays back a sample to a client.

• hs_terminate_playback – stops a playback session.

Administering Historical Server

Use these commands to manage Historical Server:

• hs_delete_data – deletes the files containing the recorded data for specified recording sessions.

• hs_status – displays the current status of Historical Server.

• hs_shutdown – stops Historical Server.