We are maintaining SharePoint 2013 on premises environment with Search index 15 M items.
We have one large content source with two site collections( Site1, Site2) each having 150 GB data.
We moved site2 to new content database and now planning to move the site 2 to new content source .
Can we edit the existing content source with removing site2 url and then create new content source with adding site2 url? Is this approach fine?
Will the existing index for site2 removed and create the new index post this change?