i am going to upgrade an HA firewall pair from 9.1.6--》9.1.14--》10.0.11-h1--〉10.1.6-h6.
First method
1).upgrade the secondary device once from 9.1.6--》9.1.14--》10.0.11-h1--〉10.1.6-h6
2) suspend local device in primary device, and then upgrade primary 9.1.6--》9.1.14--》10.0.11-h1--〉10.1.6-h6. Second method
1)upgrade the secondary device from 9.1.6--》9.1.14
2)suspend local device in primary device, and then upgrade primary 9.1.6--》9.1.14
3)upgrade the secondary device once from 9.1.14--》10.0.11-h1
4)suspend local device in primary device and then upgrade primary 9.1.14--》10.0.11-h1
5)upgrade the secondary device from 10.0.11-h1--〉10.1.6-h6.
6)suspend local device in primary device,and then upgrade primary 10.0.11-h1--〉10.1.6-h6.
which method is the best one?
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