you dont schedule deswizzling, it starts automatically after the snapmirror occurs. What you need to be aware of is if deswizzling is running and a new mirror kicks off then you need increase the time between mirros to allow deswizzling to complete.
What version of Data ONTAP are you using? 7-mode or clustered Data ONTAP? Note that the linked communities post is just shy of 3 years old and refers specifically to 7-mode....meaning it's probably targeted at later versions of the 8.1 code line.
What is your concern with deswizzling? This is something that is, for the most part, completely transparent, and has been for the last 5-ish years in most situations. Are there particular problems you're encountering or that you believe you will encounter?
TR-4075 has deswizzle best practices in section 8.1. The only thing to be aware of is that read-intensive workloads running against the destination volume before the deswizzle process finishes may cause the process to take a little longer than normal because of the extra IO.
If this post resolved your issue, please help others by selecting ACCEPT AS SOLUTION or adding a KUDO.