ISE pass 1.3 (876) in ISE 1.4 patch 7 or newer

Hi all

I have a set for active connections approx. 12000 upward with almost 19000 termination points based VM environment. Nodes as below

(1) an Administrator main node (20 GB of RAM)

(2) NHP 3 (RAM: 20 GB each)

(3) a DEM (RAM: 16 GB)

Above set up is active, it is in production, we must move to the version mentioned without interruption of service. After reviewing all the documentation, I found that the downtime is applicable to almost 1.5 to 2 hours or at least 30-40 minutes for PSN and 1 HR for MNT, we use no profiling, database dot1x/MAB

We have an admin for the secondary node, but it is not added to the deployment, please specify best practices and steps to upgrade with or without secondary node admin and downtime there is

++ Important: as you notice we run large-scale (12000 connections) with fewer resources, we expect to increase the RAM so

In my opinion /searches on Web pages, it is preferable to increase the RAM first and then plan upgrade. I have a few questions is not the documents in the guidelines of cisco

(1) in case update us the RAM, it is true that we have a new facility for ISE VM (new admin/PSN/MNT), because it can see the upgrade of RAM but will not use the same with old VM, for the record, it is mentioned that we have new facility where we intend to upgrade

(2) I can see the CPU is near 3%, but I regularly receive alerts in average load, is calculated based on Terrain or overall. What is the command to check the CPU peak value and the number of cores assigned, we have 6 hearts at the ISE (see inventory)

Thanks in advance

Kind regards

Sam

Hi Sameer,

Let me know if you have any additional questions. Otherwise, please close by scoring it.

Concerning

Gagan

Tags: Cisco Security

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