This is why we asked these questions.
Why are you going to ontap 8.1.4, and not a higher version.
If you have cdot, you should be looking to go to 9.1p1
If you have 7-mode you need to go to 8.2.4 - latest P release.
Also, all the disk firmware is easy, Just follow the steps from the download site for the disk firmware, I recommend using the all.zip package