[8.13] [8.13] Data Quality persistence (backport #4953)

docs/dashboards/data-quality-dashboard.asciidoc

@@ -29,14 +29,17 @@ To use the Data Quality dashboard, you need at least the following {ref}/securit
 [discrete]
 [[data-quality-dash-check-indices]]
 == Check indices
-When you open the dashboard, data does not appear until you select indices to check.
-
+Data does not appear in the dashboard until a user selects indices to check. 
 * *Check multiple indices*: To check all indices in the current data view, click *Check all* at the top of the dashboard. A progress indicator will appear.
 
 IMPORTANT: To customize which indices are checked when you click *Check all*, {security-guide}/data-views-in-sec.html[change the current data view].
 
 * *Check a single index*: To check a single index, expand it using the arrow on the left. Checking a single index is faster than checking all indices.
 
+Once checked, an index's data quality results persist indefinitely. You can see when the index was last checked, and generate updated results at any time.
+
+IMPORTANT: Data quality results are stored in a data stream using the following index pattern: `.kibana-data-quality-dashboard-results-<spaceId>`, where `<spaceId>` is the ID of the active {kib} {kibana-ref}/xpack-spaces.html[space]. For example, results from the default space are stored in: `.kibana-data-quality-dashboard-results-default`. 
+
 [discrete]
 == Visualize checked indices
 The treemap that appears at the top of the dashboard shows the relative size of your indices. The color of each index's node refers to its status: