We are doing major family upgrade on our target Isilon cluster.   We have a couple of policies where the source is of multiple TB and the assosication takes min of 24hrs to complete after it's break.    This will push our maintenance window to near more than a day

Is there any way that to avoid associations from breaking ?    If I disable the policies on source and target,  before upgrade and enable after, Will it resolve the issue of policy breaks and resets ? 

Thank you for your inputs.