Performance in scanning

We are trying to search for CUI data on internal file stores. Last week, I decided to run another discovery scan, this time using ALL instead of Policy Only. It took much longer and left the scanner server in an almost unusable state and didn’t give really any more information than the first one did.

Based on my research, we need to define and set the policy before we run scans. This is the information tip from the Purview scanner settings:

Scan started at: 2026-05-20 22:54:06Z

Scan ended at: 2026-05-24 16:16:51Z

Scan duration: 3 days, 17 hours, 22 minutes, 45 seconds

Scan id: 93acb922-e2ac-4fb7-b259-d6184e7aa434

Repository: \\cab-filesrv-01.fg.com\Departments. Enforce mode is Off

Scanned files:3509640

Actions:

Classified:3369456

Classified as Public:14

Classified as Fg Private:3369442

Labeled:0