pausing a multiscan job in isilon

my organization needs to apply patches to our production isilon system.  Right now we are running a multiscan job on our array that was caused after adding two nodes to our array recently.   my question is that what would be the effect of canceling the multiscan job to apply the patches which will require a reboot, if any?  are there any "gotcha's" that we need to worry about?  @