List Viewer can use S_QOS_SNAPSHOT table to obtain the last sample value for a QoS object.
This is helpful in finding the last (most recent) sample value of a QoS object.
UIM/UMP 7.x or higher
1. In the <ump_common> section of the wasp configuration, add/edit the key lists_use_snapshot, and set its value to true.
2. In the <setup> section of the data_engine configuration:
a. Add/edit the key update_last_value, and set its value to yes.
b. Add/edit the key lsv_sleep, and enter a value in seconds.
Note: The lsv_sleep key determines the interval, in seconds, between each batch update data_engine makes to
the S_QOS_SNAPSHOT table.