[Zope] ZODB scalability in in large Zope deployments

[Jeff Rodriguez]

I'm planning on using Plone and Zope for our company intranet. If 
there's one thing I've learned working at my company it's that we will 
push whatever the product is to it's absolute limit and then ask for more.

Which makes me wonder, how does ZODB scale in massive deployments? I'm 
not really concerned with the number of hits so much as ZODB's ability 
to handle:
   1. Large quantities of large objects
   2. Small quantities of very large objects.
   3. Large quantities of small objects.

I can really forsee millions of objects with sizes ranging from a couple 
kilobytes to hundreds of megabytes. Anyone with experience in this type 
of setting please let me know as I am very interested in the 
difficulties, compromises, or praise you have for/with ZODB/ZOPE/Plone.

Thank you,
Jeff Rodriguez