In-Service Migration to 19.4.0
This section describes the steps to perform an in-service software migration of a CPS 18.0.0/18.2.0 to CPS 19.4.0. This migration allows the traffic to continue running while the migration is being performed.
In-service software migrations to CPS 19.4.0 are supported only for Mobile (HA) and GR installations. Other CPS installation types cannot be migrated.
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Before migration, you need to configure at least one Graphite/Grafana user. Grafana supports Graphite data source credential configuration capability. Graphite data source requires common data source credential to be configured using Grafana for Grafana user. Data source credential must be configured before migration. If you fail to add the user, then Grafana will not have an access to Graphite database and you will get continuous prompts for Graphite/Grafana credentials. All Grafana users configured will be available after migration. However, you need to configure the graphite data source in Grafana UI. Synchronize the Grafana information between the OAM (pcrfclient) VMs by running For more information on updating graphite data source, see Configuring Graphite User Credentials in Grafana in CPS Operations Guide. |
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In CPS 19.4.0, additional application and platform statistics are enabled. Hence, there can be an increase in the disk space usage at pcrfclient VMs. Once CPS 19.4.0 is deployed, monitor the disk space usage and if required, increase the disk space. |