I don't know if I missunderstand the question, this is realy simple and there alot of information on how to do this out there.
Anyway, disable fsck is quite simple and could be done in several ways, where I think fstab is the best way to do it permanent. Have a look at this link over at nixCraft, it's very straight forward. Basically change the last value to 0 in the device list in /etc/fstab for the devices that you want to change behavior on, that is. More information could also be found in the fstab manual (man fstab from the command line.)