What Are Domino's Field Size Limits?

64 GB (gigabyte) or the OS file system's limit (2 GB on some older UNIX platforms).

http://www.geniisoft.com/showcase.nsf/DominoLimits

Check this link for more details http://www-01.ibm.com/support/docview.wss?rs=0&q1=maximum+size+domino&uid=swg21093509&loc=en_US&cs=utf-8&cc=us&lang=en