Can OnTAP 8.2.4P3 be manually upgraded directly to 9.1?

[avicena-it]

Is it possible to do a manual OnTAP upgrade from 8.2.4P3 to OnTAP 9.1, or does the upgrade need to be done in phases? 

And where would I find documentation for performing the manual upgrade process, to make sure I don't s

[TMACMD]

It is possible. Not trivial. Significant network changes going to 8.3

 multiple hops

 latest 8.2.4p release then to the latest 8.3.1p release

 then the latest 9.1 p release

 there is a lot happening from 8.2->8.3

 you really need to be on the latest 8.2.4p release for best results

 I’m sure there are significant details in the upgrade documents