I am getting conflicting information from Cisco support so I thought I would ask it here from folks with real-life
production experience with ISE. I have a ISE 3.2 patch-2 cluster:
nodeA: Primary Admin/Primary MnT
nodeB: Secondary Admin/Secondary MnT
nodeC: PSN
nodeD: PSN
In the past with ISE version 2.2 and 3.0, I use the UI to patch the cluster but I notice in my
pre-production stage, there seems to be an issue with doing it from the UI, so I would like to
use the CLI to apply patch to the cluster with ZERO down time. My approach is this order:
1- Apply the patch4 to nodeA
2- Apply the patch4 to nodeC
3- Apply the patch4 to nodeD
4- Apply the patch4 to nodeB
Anyone seeing any issues with this order? Any downsides to this approach vs. the UI interface?
TIA
