One of my customer is using a custom DMS in which they store all documents, of all projects and departments etc, at single location with metadata tagged with each document and use a search/filter page to get the document.
Currently there are more than 12k document in this DMS.
Now they are planning to migrate this DMS on SharePoint Online but want same structure of DMS, means they will upload from one single location and retrieve from on single search page. They want to save all the 10000 document in one single library and their pace of document is 500 new documents each month.
Can any one suggest is it ok to save all document (12k in this case) in one Document library. or Should I segregate these on some metadata basis into different library.