Huawei CSI Resource Management

This section lists the resource requests and limits used by each container of the Huawei CSI plug-in. For details about the unit, see Resource units in Kubernetes.

Table 1 Container resource requests and limits

Pod Name	Container Name	CPU Request	CPU Limit	Memory Request	Memory Limit
huawei-csi-controller	huawei-csi-driver	50m	500m	128Mi	1Gi
	storage-backend-sidecar	50m	300m	128Mi	512Mi
	storage-backend-controller	50m	300m	128Mi	512Mi
	huawei-csi-extender	50m	300m	128Mi	512Mi
	csi-attacher	50m	300m	128Mi	512Mi
	csi-provisioner	50m	300m	128Mi	512Mi
	csi-resize	50m	300m	128Mi	512Mi
	csi-snapshotter	50m	300m	128Mi	512Mi
	snapshot-controller	50m	300m	128Mi	512Mi
	liveness-probe	10m	100m	128Mi	128Mi
huawei-csi-node	huawei-csi-driver	50m	500m	128Mi	1Gi
	csi-node-driver-registrar	50m	300m	128Mi	128Mi
	liveness-probe	10m	100m	128Mi	128Mi

Modifying Resource Requests and Limits

If you need to modify the resource requests and limits of a container, perform the following steps (in the following example, Helm is used to install Huawei CSI):

If Helm is used for installation, go to the /helm/esdk/templates directory. For manual deployment, the file to be modified is in the /manual/esdk/deploy directory. For details about the component package path, see Table 1.
Modify the deployment template file.
- If the Pod name is huawei-csi-controller, modify the huawei-csi-controller.yaml file.
- If the Pod name is huawei-csi-node, modify the huawei-csi-node.yaml file.
For details about Pod names, see Table 1.
For example, to modify the resource request of the huawei-csi-driver container in the Pod named huawei-csi-node, run the following command to edit the configuration file and find the container whose spec.template.spec.containes.name is huawei-csi-driver. Modify resource requests and limits as required.
```
vi huawei-csi-node.yaml
```
Edit the following content.
```
containers
 - name: huawei-csi-driver
   ...
   resources:
     limits:
       cpu: 500m
       memory: 1Gi
     requests:
       cpu: 50m
       memory: 128Mi
```
If Huawei CSI is not installed, the modification of resource requests and limits takes effect after Huawei CSI is installed by referring to Installing Huawei CSI on Kubernetes, OpenShift, and Tanzu.
If Huawei CSI has been installed, the modification of resource requests and limits takes effect after Huawei CSI is updated by referring to Upgrading Huawei CSI.