Works well check your cluster switch firmware versions, and upgrade your SPs directly prior if supported. I've seen many instances of SP hangs when we went through that process over a year ago (hundreds of nodes). Overall 9.7 is a great stable version.

On Fri, Aug 13, 2021 at 3:05 PM Philbert Rupkins <philbertrupkins@gmail.com> wrote:
Hello Toasters,

Anybody have experience, positive or negative,  upgrading from 9.3 to 9.7?

It is a supported automated upgrade path but requires packages for
both 9.5 and 9.7.   My understanding is each node will be upgraded
twice (once to 9.5 then to 9.7) but otherwise should follow the
typical automated upgrade routine.

Thank You
Phil
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