Installation Guide |

Create a user in the PowerStore Navigate in the PowerStore Manager Settings -> Users -> Add

Username: csmadmin
User Role: Storage Operator
(Optional) Create NAS server Navigate in the PowerStore Manager Storage -> Nas Servers -> Create

For the protocol specific prerequisite check below.

Complete the zoning of each host with the PowerStore Storage Array. Please refer the Host Connectivity Guide for the guidelines when setting a Fibre Channel SAN infrastructure.
Verify the initiators of each host are logged in to the PowerStore Storage Array. CSM will perform the Host Registration of each host with the PowerStore Array.

Multipathing software configuration

a. Configure Device Mapper MPIO for PowerStore FC connectivity

Use this command to create the machine configuration to configure the DM-MPIO service on all the worker hosts for FC connectivity.

oc apply -f 99-workers-multipath-conf.yaml

Example:

cat <<EOF> multipath.conf
defaults {
  polling_interval 5
  checker_timeout 15
  disable_changed_wwids yes
  find_multipaths no
}
devices {
  device {
    vendor                   DellEMC
    product                  PowerStore
    detect_prio              "yes"
    path_selector            "queue-length 0"
    path_grouping_policy     "group_by_prio"
    path_checker             tur
    failback                 immediate
    fast_io_fail_tmo         5
    no_path_retry            3
    rr_min_io_rq             1
    max_sectors_kb           1024
    dev_loss_tmo             10
  }
}
EOF

cat <<EOF> 99-workers-multipath-conf.yaml
apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
  name: 99-workers-multipath-conf
  labels:
    machineconfiguration.openshift.io/role: worker
spec:
  config:
    ignition:
      version: 3.4.0
    storage:
      files:
      - contents:
          source: data:text/plain;charset=utf-8;base64,$(cat multipath.conf | base64 -w0)
          verification: {}
        filesystem: root
        mode: 400
        path: /etc/multipath.conf
EOF

b. Enable Linux Device Mapper MPIO

Use this command to create the machine configuration to enable the DM-MPIO service on all the worker host

oc apply -f 99-workers-enable-multipathd.yaml

cat << EOF > 99-workers-enable-multipathd.yaml
apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
  name: 99-workers-enable-multipathd.yaml
  labels:
    machineconfiguration.openshift.io/role: worker
spec:
  config:
    ignition:
      version: 3.4.0
    systemd:
      units:
      - name: "multipathd.service"
        enabled: true
EOF

Complete the iSCSI network configuration to connect the hosts with the PowerStore Storage array. Please refer the Host Connectivity Guide for the best practices for attaching the hosts to a PowerStore storage array.
Verify the initiators of each host are logged in to the PowerStore Storage Array. CSM will perform the Host Registration of each host with the PowerStore Array.

Enable iSCSI service

Use this command to create the machine configuration to enable the iscsid service.

oc apply -f 99-workers-enable-iscsid.yaml

Example:

cat <<EOF> 99-workers-enable-iscsid.yaml
apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
  name: 99-workers-enable-iscsid
  labels:
    machineconfiguration.openshift.io/role: worker
spec:
  config:
    ignition:
      version: 3.4.0
    systemd:
      units:
      - name: "iscsid.service"
        enabled: true

Multipathing software configuration

a. Configure Device Mapper MPIO for PowerStore iSCSI connectivity

Use this command to create the machine configuration to configure the DM-MPIO service on all the worker hosts for iSCSI connectivity.

oc apply -f 99-workers-multipath-conf.yaml

Example:

cat <<EOF> multipath.conf
defaults {
  polling_interval 5
  checker_timeout 15
  disable_changed_wwids yes
  find_multipaths no
}
devices {
  device {
    vendor                   DellEMC
    product                  PowerStore
    detect_prio              "yes"
    path_selector            "queue-length 0"
    path_grouping_policy     "group_by_prio"
    path_checker             tur
    failback                 immediate
    fast_io_fail_tmo         5
    no_path_retry            3
    rr_min_io_rq             1
    max_sectors_kb           1024
    dev_loss_tmo             10
  }
}
EOF

cat <<EOF> 99-workers-multipath-conf.yaml
apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
  name: 99-workers-multipath-conf
  labels:
    machineconfiguration.openshift.io/role: worker
spec:
  config:
    ignition:
      version: 3.4.0
    storage:
      files:
      - contents:
          source: data:text/plain;charset=utf-8;base64,$(cat multipath.conf | base64 -w0)
          verification: {}
        filesystem: root
        mode: 400
        path: /etc/multipath.conf
EOF

b. Enable Linux Device Mapper MPIO

Use this command to create the machine configuration to enable the DM-MPIO service on all the worker host

oc apply -f 99-workers-enable-multipathd.yaml

cat << EOF > 99-workers-enable-multipathd.yaml
apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
  name: 99-workers-enable-multipathd.yaml
  labels:
    machineconfiguration.openshift.io/role: worker
spec:
  config:
    ignition:
      version: 3.4.0
    systemd:
      units:
      - name: "multipathd.service"
        enabled: true
EOF

Complete the zoning of each host with the PowerStore Storage Array. Please refer the Host Connectivity Guide for the guidelines when setting a Fibre Channel SAN infrastructure.

Verify the initiators of each host are logged in to the PowerStore Storage Array. CSM will perform the Host Registration of each host with the PowerStore Array.

Configure IO policy for native NVMe multipathing

Use this comment to create the machine configuration to configure the native NVMe multipathing IO Policy to round robin.

oc apply -f 99-workers-multipath-round-robin.yaml

cat <<EOF> 71-nvmf-iopolicy-dell.rules
ACTION=="add", SUBSYSTEM=="nvme-subsystem", ATTR{model}=="dellemc-powerstore",ATTR{iopolicy}="round-robin"
EOF

Example:

cat <<EOF> 99-workers-multipath-round-robin.yaml
apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
  name: 99-workers-multipath-round-robin
  labels:
    machineconfiguration.openshift.io/role: worker
spec:
  config:
    ignition:
      version: 3.4.0
    storage:
      files:
      - contents:
          source: data:text/plain;charset=utf-8;base64,$(cat 71-nvmf-iopolicy-dell.rules | base64 -w0)
          verification: {}
        filesystem: root
        mode: 420
        path: /etc/udev/rules.d/71-nvme-io-policy.rules
EOF

Configure NVMe reconnecting forever

Use this command to create the machine configuration to configure the NVMe reconnect

oc apply -f 99-workers-nvmf-ctrl-loss-tmo.yaml

cat <<EOF> 72-nvmf-ctrl_loss_tmo.rules
ACTION=="add|change", SUBSYSTEM=="nvme", KERNEL=="nvme*", ATTR{ctrl_loss_tmo}="-1"
EOF

cat <<EOF> 99-workers-nvmf-ctrl-loss-tmo.yaml
apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
  name: 99-workers-nvmf-ctrl-loss-tmo
  labels:
    machineconfiguration.openshift.io/role: worker
spec:
  config:
    ignition:
      version: 3.4.0
    storage:
      files:
      - contents:
          source: data:text/plain;charset=utf-8;base64,$(cat 72-nvmf-ctrl_loss_tmo.rules | base64 -w0)
          verification: {}
        filesystem: root
        mode: 420
        path: /etc/udev/rules.d/72-nvmf-ctrl_loss_tmo.rules
EOF

Complete the NVMe network configuration to connect the hosts with the PowerStore Storage array. Please refer Host Connectivity Guide for the best practices for attaching the hosts to a PowerStore storage array.

Verify the initiators of each host are logged in to the PowerStore Storage Array. CSM will perform the Host Registration of each host with the PowerStore Array.

Configure IO policy for native NVMe multipathing

Use this comment to create the machine configuration to configure the native NVMe multipathing IO Policy to round robin.

oc apply -f 99-workers-multipath-round-robin.yaml

cat <<EOF> 71-nvmf-iopolicy-dell.rules
ACTION=="add", SUBSYSTEM=="nvme-subsystem", ATTR{model}=="dellemc-powerstore",ATTR{iopolicy}="round-robin"
EOF

Example:

cat <<EOF> 99-workers-multipath-round-robin.yaml
apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
  name: 99-workers-multipath-round-robin
  labels:
    machineconfiguration.openshift.io/role: worker
spec:
  config:
    ignition:
      version: 3.4.0
    storage:
      files:
      - contents:
          source: data:text/plain;charset=utf-8;base64,$(cat 71-nvmf-iopolicy-dell.rules | base64 -w0)
          verification: {}
        filesystem: root
        mode: 420
        path: /etc/udev/rules.d/71-nvme-io-policy.rules
EOF

Configure NVMe reconnecting forever

Use this command to create the machine configuration to configure the NVMe reconnect

oc apply -f 99-workers-nvmf-ctrl-loss-tmo.yaml

cat <<EOF> 72-nvmf-ctrl_loss_tmo.rules
ACTION=="add|change", SUBSYSTEM=="nvme", KERNEL=="nvme*", ATTR{ctrl_loss_tmo}="-1"
EOF

cat <<EOF> 99-workers-nvmf-ctrl-loss-tmo.yaml
apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
  name: 99-workers-nvmf-ctrl-loss-tmo
  labels:
    machineconfiguration.openshift.io/role: worker
spec:
  config:
    ignition:
      version: 3.4.0
    storage:
      files:
      - contents:
          source: data:text/plain;charset=utf-8;base64,$(cat 72-nvmf-ctrl_loss_tmo.rules | base64 -w0)
          verification: {}
        filesystem: root
        mode: 420
        path: /etc/udev/rules.d/72-nvmf-ctrl_loss_tmo.rules
EOF

Operator Installation

On the OpenShift console, navigate to OperatorHub and use the keyword filter to search for Dell Container Storage Modules.
Click Dell Container Storage Modules tile
Keep all default settings and click Install.

Verify that the operator is deployed

oc get operators

NAME                                                          AGE
dell-csm-operator-certified.openshift-operators               2d21h

oc get pod -n openshift-operators

NAME                                                       READY   STATUS       RESTARTS      AGE
dell-csm-operator-controller-manager-86dcdc8c48-6dkxm      2/2     Running      21 (19h ago)  2d21h

CSI Driver Installation

Create project:

Use this command to create new project. You can use any project name instead of powerstore.
```
oc new-project powerstore
```

Create config secret:

Create a file called config.yaml or use sample:

Example:

cat << EOF > config.yaml
arrays:
  - endpoint: "https://powerstore.example.com/api/rest"
    globalID: "PSxxxxxxxxxxxx"
    username: "csmadmin"
    password: "P@ssw0rd123"
    skipCertificateValidation: true
    blockProtocol: "FC"
EOF

Add blocks for each PowerStore array in config.yaml, and include both source and target arrays if replication is enabled.

The username in config.yaml must be from PowerStore’s authentication providers and have at least the Storage Operator role.

Edit the file, then run the command to create the powerstore-config.

oc create secret generic powerstore-config --from-file=config=config.yaml -n powerstore --dry-run=client -oyaml > secret-powerstore-config.yaml

Use this command to create the config:

oc apply -f secret-powerstore-config.yaml

Use this command to replace or update the config:

oc replace -f secret-powerstore-config.yaml --force

Verify config secret is created.

oc get secret -n powerstore

NAME                 TYPE        DATA   AGE
powerstore-config    Opaque      1      3h7m

Create Custom Resource ContainerStorageModule for powerstore.

Use this command to create the ContainerStorageModule Custom Resource:
```
oc create -f csm-powerstore.yaml
```
Example:
```
cat << EOF > csm-powerstore.yaml
apiVersion: storage.dell.com/v1
kind: ContainerStorageModule
metadata:
  name: powerstore
  namespace: powerstore
spec:
driver:
   csiDriverType: "powerstore"
   configVersion: v2.14.0
   forceRemoveDriver: true
EOF
```
Detailed Configuration: Use the sample file for detailed settings or use Wizard to generate the sample file.

To set the parameters in CR. The table shows the main settings of the PowerStore driver and their defaults.

Parameters

Parameter	Description	Required	Default
replicas	Controls the number of controller pods you deploy. If the number of controller pods is greater than the number of available nodes, the excess pods will be in pending state until new nodes are available for scheduling. Default is 2 which allows for Controller high availability.	Yes	2
namespace	Specifies namespace where the driver will be installed	Yes	“powerstore”
fsGroupPolicy	Defines which FS Group policy mode to be used. Supported modes `None, File and ReadWriteOnceWithFSType`. In OCP <= 4.16 and K8s <= 1.29, fsGroupPolicy is an immutable field.	No	“ReadWriteOnceWithFSType”
storageCapacity	Enable/Disable storage capacity tracking feature	No	false
Common parameters for node and controller
X_CSI_POWERSTORE_NODE_NAME_PREFIX	Prefix to add to each node registered by the CSI driver	Yes	“csi-node”
X_CSI_FC_PORTS_FILTER_FILE_PATH	To set path to the file which provides a list of WWPN which should be used by the driver for FC connection on this node	No	“/etc/fc-ports-filter”
Controller parameters
X_CSI_POWERSTORE_EXTERNAL_ACCESS	allows specifying additional entries for hostAccess of NFS volumes. Both single IP address and subnet are valid entries	No	empty
X_CSI_NFS_ACLS	Defines permissions - POSIX mode bits or NFSv4 ACLs, to be set on NFS target mount directory.	No	“0777”
X_CSI_MULTI_NAS_FAILURE_THRESHOLD	Number of consecutive FS creation failures after which a NAS is put into cooldown. Please refer Multi NAS Support for more details.	No	“5”
X_CSI_MULTI_NAS_COOLDOWN_PERIOD	Duration for which a NAS remains in cooldown once the threshold is reached. Please refer Multi NAS Support for more details.	No	“5m”
Node parameters
X_CSI_POWERSTORE_ENABLE_CHAP	Set to true if you want to enable iSCSI CHAP feature	No	false

oc get csm powerstore -n powerstore

NAME        CREATIONTIME   CSIDRIVERTYPE   CONFIGVERSION         STATE
powerstore  3h             powerstore      v2.14.0               Succeed

Check the status of the CR to verify if the driver installation is in the Succeeded state. If the status is not Succeeded, see the Troubleshooting guide for more information.

Create Storage class:

Use this command to create the Storage Class:

oc apply -f sc-powerstore.yaml

Example:

cat << EOF > sc-powerstore.yaml
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: "powerstore"
  annotations:
    storageclass.kubernetes.io/is-default-class: "true"
provisioner: "csi-powerstore.dellemc.com"
parameters:
  arrayID: "Unique"
  csi.storage.k8s.io/fstype: "xfs"
reclaimPolicy: Delete
allowVolumeExpansion: true
volumeBindingMode: Immediate
EOF

Replace placeholders with actual values for your powerstore array and various storage class sample refer here

Verify Storage Class is created:

oc get storageclass powerstore

NAME                    PROVISIONER                    RECLAIMPOLICY   VOLUMEBINDINGMODE   ALLOWVOLUMEEXPANSION   AGE
powerstore(default)     csi-powerstore.dellemc.com     Delete          Immediate           true                   3h8m

Create Volume Snapshot Class:

Use this command to create the Volume Snapshot:

oc apply -f vsclass-powerstore.yaml

Example:

cat << EOF > vsclass-powerstore.yaml
apiVersion: snapshot.storage.k8s.io/v1
kind: VolumeSnapshotClass
metadata:
name: powerstore-snapshot
driver: "csi-powerstore.dellemc.com"
deletionPolicy: Delete
EOF

Verify Volume Snapshot Class is created:

oc get volumesnapshotclass

NAME                      DRIVER                              DELETIONPOLICY   AGE
vsclass-powerstore        csi-powerstore.dellemc.com          Delete           3h9m

Configurations

Persistent Volume Claim

Volume Snapshot

Create Volume Snapshot

Use this command to create the Volume Snapshot:

oc apply -f vs-powerstore.yaml

Example:

cat << 'EOF' > vs-powerstore.yaml
apiVersion: snapshot.storage.k8s.io/v1
kind: VolumeSnapshot
metadata:
  name: vs-powerstore
  namespace: default
spec:
  volumeSnapshotClassName: vsclass-powerstore
  source:
    persistentVolumeClaimName: pvc-powerstore
EOF

Verify Volume Snapshot is created:

oc get volumesnapshot -n default

NAME READYTOUSE SOURCEPVC SOURCESNAPSHOTCONTENT RESTORESIZE SNAPSHOTCLASS SNAPSHOTCONTENT CREATIONTIME AGE vs-powerstore true pvc-powerstore 8Gi vsclass-powerstore snapcontent-80e99281-0d96-4275-b4aa-50301d110bd4 2m57s 12s

Verify Volume Snapshot content is created:

oc get volumesnapshotcontent

NAME READYTOUSE RESTORESIZE DELETIONPOLICY DRIVER VOLUMESNAPSHOTCLASS VOLUMESNAPSHOT VOLUMESNAPSHOTNAMESPACE AGE snapcontent-80e99281-0d96-4275-b4aa-50301d110bd4 true 8589934592 Delete csi-powerstore.dellemc.com vsclass-powerstore vs-powerstore default 23s

Restore Snapshot

Use this command to Restore Snapshot:

oc apply -f pvc-powerstore-restore.yaml

Example:

cat << 'EOF' > pvc-powerstore-restore.yaml
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: pvc-powerstore-restore
  namespace: default
spec:
  storageClassName: powerstore
  dataSource:
    name: vs-powerstore
    kind: VolumeSnapshot
    apiGroup: snapshot.storage.k8s.io
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 8Gi
  EOF

Verify restore pvc is created:

oc get pvc -n default

NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS VOLUMEATTRIBUTESCLASS AGE pvc-powerstore Bound ocp08-095f7d3c52 8Gi RWO powerstore <unset> 7m34s pvc-powerstore-restore Bound ocp08-19874e9042 8Gi RWO powerstore <unset> 4s

Delete Restore Persistent Volume Claim

Use this command to Delete Restore Persistent Volume Claim:
```
oc delete pvc pvc-powerstore-restore -n default
```

Delete Volume Snapshot

Use this command to Delete Volume Snapshot:

oc delete vs vs-powerstore -n default

Verify Volume Snapshot is deleted:

oc get vs -n default

NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS VOLUMEATTRIBUTESCLASS AGE

Installation Guide

Prerequisite

Base Install

Operator Installation

CSI Driver Installation

Create project:

Create config secret:

Create Custom Resource ContainerStorageModule for powerstore.

Create Storage class:

Create Volume Snapshot Class:

Configurations

Create Persistent Volume Claim

Create Pod which uses Persistent Volume Claim with storage class

Delete Persistence Volume Claim

Create Volume Snapshot

Restore Snapshot

Delete Restore Persistent Volume Claim

Delete Volume Snapshot

Modules

Resiliency

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