Working data size
The amount of data that most of your queries operate on. In most Vertica databases, you store more data than you regularly query. For example, suppose you are storing sales data for a corporation. You may keep many years of sales data in your database. However, the majority of queries you run may only query the last year of data to determine current sales trends. In that case, your working data size is the amount of sales data you load into the database in a year.
Knowing your working data size is important when configuring an Eon Mode database. You want the total size of the depots in all of the nodes a subcluster to be large enough to fit the working data size. Note that the working data size may vary per subcluster. Some subclusters may only work on recently-loaded data, while others do many queries on a larger data set.