02-26-2020 02:32 AM - edited 02-26-2020 02:33 AM
Hello Team,
Need your suggestions.
we have 12 ISE nodes installed on VM and need to perform below task
1. To chnage HDD of admin & MnT node only.
2. need to upgrade all nodes on new ISE version.
Reigon-1 --- 6 nodes
+++++++++++++++++++
1. Primary Admin
2. Secondary Admin
3. Primary MnT
4. Secondary MnT
5. PSN
6. PSN
Reigon-2 ----2 nodes (Similary we have additional 4 PSN in two different region)
1. PSN
2. PSN
Could you please suggest sequence of nodes ?? How to proceed.
My understanding is ----
1. first deregister Admin-02, create new VM, chnage HDD, install new image, restore config backup, chnage role to primary.
2. Deregister MnT-02, Create new VM, chnage HDD, install new image, chnage role to primary.add in new deployment
3. Deregister any PSN on which we have less traffic, upgrade it to new version , add in new deployment.
4. similarly do for all pending 7 PSN.
5. Deregister MnT-01, Create new VM, chnage HDD, install new image, chnage role to secondary.add in new deployment.
6.Deregister Admin-01, Create new VM, chnage HDD, install new image, restore config backup, chnage role to Secondary.
7. finally chnage role as per old deployment
02-26-2020 04:51 AM
That sounds like a good sequence to me. Perhaps add a step in after doing the first PSN to ensure that all is working well with as many use cases as possible. Don’t forget to patch (either at the end in a Big Bang approach, or one by one. If you patch the new Primary admin, then all subsequent nodes need to be on same patch level before you can register them into the cluster).
02-26-2020 08:49 AM
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