Configure Powerstore CSI Backend

CSI driver for PowerStore is a part of the CSM open-source suite of Kubernetes storage enablers for Dell products. It is a CSI driver that provides support for provisioning persistent storage using Dell PowerStore storage array.

Enable CSI PowerStore Chart

Note

By default, the csi-powerstore chart is enabled. Disable any other CSI/CSM if not used/configured, otherwise it could cause the application to fail on apply.

(keystone_admin)$ system helm-chart-attribute-modify --enabled false dell-storage <chart_name> dell-storage

1. Enable the chart.

   (keystone_admin)$  system helm-chart-attribute-modify --enabled true dell-storage csi-powerstore dell-storage
   

2. Create overrides to configure the storage connection.

   ISCSI Protocol

   :name: powerstoreOverrides.yaml
   storageClasses:
   - name: csi-powerstore-iscsi
     arrayID: <ARRAY_ID>
     fstype: ext4
   
   secret:
     arrays:
   
     - globalID: <GLOBAL_ID>
       username: <USERNAME>
       password: <PASSWORD>
       endpoint: https://<POWERSTORE_ADDRESS>/api/rest
       isDefault: true
       blockProtocol: "ISCSI"
   

   NFS Protocol

   :name: powerstoreOverrides.yaml
   storageClasses:
   - name: csi-powerstore-nfs
     arrayID: <ARRAY_ID>
     fstype: ext4
     nasName: NAS1
   
   secret:
     arrays:
   
     - globalID: <GLOBAL_ID>
       username: <USERNAME>
       password: <PASSWORD>
       endpoint: https://<POWERSTORE_ADDRESS>/api/rest
       isDefault: true
       blockProtocol: None
       nasName: NAS1
   

3. Apply overrides.

   (keystone_admin)$ system helm-override-update dell-storage csi-powerstore dell-storage --values=powerstoreOverrides.yaml
   

4. Apply the chart.

   (keystone_admin)$ system application-apply dell-storage
   

UserOverrides Parameters

General Parameters

Parameter	Description	Required	Default
csm.replication	Enables/disables replication sidecar container.	No	false
csm.resiliency	Enables/disables podmon sidecar container.	No	false
app.starlingx.io/component	Core Affinity.	No	platform
controller.replication.replicationPrefix	Change replication prefix.	No	replication.storage.dell.com
controller.snapshot.deletionPolicy	Specifies what happens when VolumeSnapshot is deleted.	No	Delete

StorageClasses Parameters

Parameter	Description	Required	Default
storageClasses[0].name	StorageClass name.	Yes	“csi-powerstore-” + fstype
storageClasses[0].arrayID	ID of array to be used for volumes. arrayID corresponding to array’s globalID specified in secrets.	Yes	Not Applicable
storageClasses[0].nasName	NAS server’s name. Important: required for NFS protocol.	No	Not Applicable
storageClasses[0].provisioner	Driver name.	No	csi-powerstore.dellemc.com
storageClasses[0].fstype	Filesystem type for mounted volumes.	No	nfs
storageClasses[0].reclaimPolicy	PVs that are dynamically created by a StorageClass will have the reclaim policy specified here.	No	Delete
storageClasses[0].allowVolumeExpansion	Allows the users to resize the volume by editing the corresponding PVC object.	No	false
storageClasses[0].volumeBindingMode	Controls when volume binding and dynamic provisioning should occur.	No	Immediate
storageClasses[0].allowRoot	Enables or disables root squashing (valid only for NFS).	No	false
storageClasses[0].nfsAcls	Enables setting permissions on NFS mount directory.	No	0777
storageClasses[0].allowedTopologies	This feature lets you specify sub-divisions of a cluster for a volume to be placed in.	Yes	Not Applicable
storageClasses[0].replication	Used to configure replication sidecar container.	No	Not Applicable
storageClasses[0].replication.remoteStorageClassName	Remote StorageClass name.	No	csi-powerstore-replication
storageClasses[0].replication.remoteClusterID	Remote ClusterID.	No	Not Applicable
storageClasses[0].replication.remoteSystem	Remote PowerStore system.	No	Not Applicable
storageClasses[0].replication.rpo	Change to any other RPOs supported by PowerStore.	No	Five_Minutes
storageClasses[0].replication.ignoreNamespaces	Set to true if you want to ignore namespaces and if false creates separate volume group per namespace.	No	false
storageClasses[0].replication.volumeGroupPrefix	Volume group prefix.	No	csi-powerstore

Secret Parameters

Parameter	Description	Required	Default
secret.arrays	List of PowerStore array.	Yes	Not Applicable
secret.arrays[0].globalID	Unique ID of the PowerStore array. globalID corresponding to arrayID specified in storageClasses.	Yes	Not Applicable
secret.arrays[0].username	Username for connecting to REST API server.	Yes	Not Applicable
secret.arrays[0].password	Password for connecting to REST API server.	Yes	Not Applicable
secret.arrays[0].endpoint	HTTPS endpoint of the REST API server.	Yes	Not Applicable
secret.arrays[0].isDefault	Treat current array as a default. Important: requires one array as default.	No	false
secret.arrays[0].skipCertificateValidation	Indicates if client side validation of server’s certificate can be skipped.	No	true
secret.arrays[0].blockProtocol	What SCSI transport protocol used on node side (FC, ISCSI, NVMeTCP, NVMeFC, None, or auto).	No	auto
secret.arrays[0].nasName	What NAS should be used for NFS volumes. Required for NFS protocol.	No	Not Applicable
secret.arrays[0].nfsAcls	Enables setting permissions on NFS mount directory.	No	0777