We are running SharePoint 2013 on-prem. I detached a Central Admin server that was part of the farm and also had the Crawler, Content Processing, Analytics processing, Query Processing and had a single partition. When I reattached the server to the farm it no longer was part of the search topology with the components specified.

My question is 1) how can I add it to an existing search topology AND 2) I do NOT want to lose any of my Search Schema configurations, Crawl Rules, Results Sources, etc..

I dont mind if the index gets reset, but I can not loose any search schema information and I am afraid cloning the search topology would cause me to lose the Search Schema (Im almost 100% sure it would).

Thanks, Tom