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

   ~(keystone_admin)$ cat << EOF > /home/sysadmin/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"
   EOF
   

   NFS Protocol

   ~(keystone_admin)$ cat << EOF > /home/sysadmin/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
   EOF
   

3. Apply overrides.

   ~(keystone_admin)$ system helm-override-update dell-storage csi-powerstore dell-storage --values=/home/sysadmin/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
labels.isApplication	If set to true it can run with application core affinity, otherwise it runs as platform.	No		false
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