Обсуждение: Could you help me ?

Hello.

I am going to implement large object manager 
for certain samll education purposed DBMS.

So I've read the paper   " Large Object Suport in POSTGRES"                           - Michael Stonbraker, Michael
Olson
But it contains nothing about the detail. 
That is, how's it implemented, what's the problem, 
especially how does it recover when failure occurred and                       handle objects between memory and disk
or                                             client and server.
 

Could you explain the detail, or         recommend some resources I should read ?

Sorry for unexpected mail and poor english.