I have a single server SharePoint 2013 farm, and use Enterprise Search.
The Index Partition keeps degrading. I've seen one instance where it fixed itself, but on every other occasion, I have had to reset the index and reindex my sites.
Within hours (2 to 24) of me kicking off another full crawl, the index partition degrades again, and enterprise search breaks.
I have tried to delete and re-create the search service application. Same problem occurs.
I read an article that suggested disk space could be a problem. I can't see this as being a problem in my environment as every disk has a large chunk of space free. Does anyone have guidance on how much free space I should have to not cause problems?
Where should I start troubleshooting this thing?