webspace vs hard disk quota

[Flanker]

hi,

i am a newbie at plesk 7.5.3 and didnt find an answer in the admin guide yet.
hope u can help me.

i want to have a web package with 100mb webspace and 10x10mb email accounts.
then i have to set:
webspace = 100mb
hard disk quota = 200mb
or
webspace = 200mb
hard disk quota = 200mb
or
something else?

pls dont worry if the question is to stupid but i dont know it

thanks,