How Solr knows the Cores it has on startup?

[Shashank Pedamallu]

Hi,

I wanted to know how does Solr pick up cores on startup. Basically, what I 
would like to try is Read cores created from one Solr instance from another 
Solr instance. i.e.,

  *   I will have 2 Solr Instances SOLR1, SOLR2. Only SOLR1 is started.
  *   I’m creating a core (Core1) using SOLR1.
  *   After filling it to some capacity, I unload this core without deleting 
the data.
  *   I would now start SOLR2 and would like to point SOLR2 to Core1.
Can someone please share me the details on how I can achieve this?

Thanks,
Shashank