What does Remote Data Import on viewpoint mean?

Viewpoint

What does Remote Data Import on viewpoint mean?

Hi TD,

I am trying to import a table of size 15GB(uncompressed text format on hive) from td hadoop to teradata using Query Grid. When monitoring the job through viewpoint, the Remote data Imported shows a value of 800T intially and then reduces to 500E and eventually to 218T. What exactly do those values mean?