How to prevent a filesystem from getting checked by fsck?

[Francisco Reyes]

Have a server  with 3 large filesystems.
I would like to have only one checked by fsck and mounted.
The other two I want to fsck and mount manually.

Is it enough to change options to "rw,noauto" and pass to 0 for the two I 
don't want mounted or fscked?

This is so in case of a crash, like we had today, the machine will be up 
sooner. The two filesystem that I will set to noauto, are used by cron jobs 
which can wait.