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Copy file name to clipboardExpand all lines: articles/operator-nexus/howto-cluster-runtime-upgrade.md
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@@ -107,7 +107,7 @@ az networkcloud cluster show --resource-group "<resourceGroup>" /
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"waitTimeMinutes": 1
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```
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In this example, if less than 60% of the compute nodes being provisioned in a rack fail to provision (on a rack by rack basis), the cluster deployment fails. If 60% or more of the compute nodes are successfully provisioned, cluster deployment moves on to the next rack of compute nodes.
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In this example, if less than 60% of the compute nodes being provisioned in a rack fail to provision (on a Rack by Rack basis), the cluster deployment fails. If 60% or more of the compute nodes are successfully provisioned, cluster deployment moves on to the next rack of compute nodes.
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The following example is for a customer using Rack by Rack strategy with a threshold type CountSuccess of 10 nodes per rack and a 1-minute pause.
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@@ -132,7 +132,7 @@ az networkcloud cluster show --resource-group "<resourceGroup>" /
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"waitTimeMinutes": 1
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```
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In this example, if less than 10 compute nodes being provisioned in a rack fail to provision (on a rack by rack basis), the cluster deployment fails. If 10 or more of the compute nodes are successfully provisioned, cluster deployment moves on to the next rack of compute nodes.
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In this example, if less than 10 compute nodes being provisioned in a rack fail to provision (on a Rack by Rack basis), the cluster deployment fails. If 10 or more of the compute nodes are successfully provisioned, cluster deployment moves on to the next rack of compute nodes.
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> [!NOTE]
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> ***`update-strategy` cannot be changed after the cluster runtime upgrade has started.***
The runtime upgrade is a long process. The upgrade first upgrades the management nodes and then sequentially rack by rack for the worker nodes.
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The runtime upgrade is a long process. The upgrade first upgrades the management nodes and then sequentially Rack by Rack for the worker nodes.
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The upgrade is considered to be finished when 80% of worker nodes per rack and 100% of management nodes are successfully upgraded.
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Workloads might be impacted while the worker nodes in a rack are in the process of being upgraded, however workloads in all other racks are not impacted. Consideration of workload placement in light of this implementation design is encouraged.
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Upgrading all the nodes takes multiple hours but can take more if other processes, like firmware updates, are also part of the upgrade.
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Upgrading all the nodes takes multiple hours, depending upon how many racks exist for the Cluster.
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Due to the length of the upgrade process, the Cluster's detail status should be checked periodically for the current state of the upgrade.
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To check on the status of the upgrade observe the detailed status of the cluster. This check can be done via the portal or az CLI.
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To check on the status of the upgrade observe the detailed status of the Cluster. This check can be done via the portal or az CLI.
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To view the upgrade status through the Azure portal, navigate to the targeted cluster resource. In the cluster's *Overview* screen, the detailed status is provided along with a detailed status message.
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