Helm Values

global.cattle.systemDefaultRegistry

string

""

Default system registry.

global.cattle.windowsCluster.defaultSetting.systemManagedComponentsNodeSelector

string

"kubernetes.io/os:linux"

Node selector for system-managed Longhorn components.

global.cattle.windowsCluster.defaultSetting.taintToleration

string

"cattle.io/os=linux:NoSchedule"

Toleration for system-managed Longhorn components.

global.cattle.windowsCluster.enabled

bool

false

Setting that allows Longhorn to run on a Rancher Windows cluster.

global.cattle.windowsCluster.nodeSelector

object

{"kubernetes.io/os":"linux"}

Node selector for Linux nodes that can run user-deployed Longhorn components.

global.cattle.windowsCluster.tolerations

list

[{"effect":"NoSchedule","key":"cattle.io/os","operator":"Equal","value":"linux"}]

Toleration for Linux nodes that can run user-deployed Longhorn components.

networkPolicies.enabled

bool

false

Setting that allows you to enable network policies that control access to Longhorn pods.

networkPolicies.type

string

"k3s"

Distribution that determines the policy for allowing access for an ingress. (Options: "k3s", "rke2", "rke1")

image.csi.attacher.repository

string

"longhornio/csi-attacher"

Repository for the CSI attacher image. When unspecified, Longhorn uses the default value.

image.csi.attacher.tag

string

"v4.4.2"

Tag for the CSI attacher image. When unspecified, Longhorn uses the default value.

image.csi.livenessProbe.repository

string

"longhornio/livenessprobe"

Repository for the CSI liveness probe image. When unspecified, Longhorn uses the default value.

image.csi.livenessProbe.tag

string

"v2.12.0"

Tag for the CSI liveness probe image. When unspecified, Longhorn uses the default value.

image.csi.nodeDriverRegistrar.repository

string

"longhornio/csi-node-driver-registrar"

Repository for the CSI Node Driver Registrar image. When unspecified, Longhorn uses the default value.

image.csi.nodeDriverRegistrar.tag

string

"v2.9.2"

Tag for the CSI Node Driver Registrar image. When unspecified, Longhorn uses the default value.

image.csi.provisioner.repository

string

"longhornio/csi-provisioner"

Repository for the CSI Provisioner image. When unspecified, Longhorn uses the default value.

image.csi.provisioner.tag

string

"v3.6.2"

Tag for the CSI Provisioner image. When unspecified, Longhorn uses the default value.

image.csi.resizer.repository

string

"longhornio/csi-resizer"

Repository for the CSI Resizer image. When unspecified, Longhorn uses the default value.

image.csi.resizer.tag

string

"v1.9.2"

Tag for the CSI Resizer image. When unspecified, Longhorn uses the default value.

image.csi.snapshotter.repository

string

"longhornio/csi-snapshotter"

Repository for the CSI Snapshotter image. When unspecified, Longhorn uses the default value.

image.csi.snapshotter.tag

string

"v6.3.2"

Tag for the CSI Snapshotter image. When unspecified, Longhorn uses the default value.

image.longhorn.backingImageManager.repository

string

"longhornio/backing-image-manager"

Repository for the Backing Image Manager image. When unspecified, Longhorn uses the default value.

image.longhorn.backingImageManager.tag

string

"master-head"

Tag for the Backing Image Manager image. When unspecified, Longhorn uses the default value.

image.longhorn.engine.repository

string

"longhornio/longhorn-engine"

Repository for the Longhorn Engine image.

image.longhorn.engine.tag

string

"master-head"

Tag for the Longhorn Engine image.

image.longhorn.instanceManager.repository

string

"longhornio/longhorn-instance-manager"

Repository for the Longhorn Instance Manager image.

image.longhorn.instanceManager.tag

string

"master-head"

Tag for the Longhorn Instance Manager image.

image.longhorn.manager.repository

string

"longhornio/longhorn-manager"

Repository for the Longhorn Manager image.

image.longhorn.manager.tag

string

"master-head"

Tag for the Longhorn Manager image.

image.longhorn.shareManager.repository

string

"longhornio/longhorn-share-manager"

Repository for the Longhorn Share Manager image.

image.longhorn.shareManager.tag

string

"master-head"

Tag for the Longhorn Share Manager image.

image.longhorn.supportBundleKit.repository

string

"longhornio/support-bundle-kit"

Repository for the Longhorn Support Bundle Manager image.

image.longhorn.supportBundleKit.tag

string

"v0.0.37"

Tag for the Longhorn Support Bundle Manager image.

image.longhorn.ui.repository

string

"longhornio/longhorn-ui"

Repository for the Longhorn UI image.

image.longhorn.ui.tag

string

"master-head"

Tag for the Longhorn UI image.

image.openshift.oauthProxy.repository

string

"longhornio/openshift-origin-oauth-proxy"

Repository for the OAuth Proxy image. This setting applies only to OpenShift users.

image.openshift.oauthProxy.tag

float

4.14

Tag for the OAuth Proxy image. This setting applies only to OpenShift users. Specify OCP/OKD version 4.1 or later. The latest stable version is 4.14.

image.pullPolicy

string

"IfNotPresent"

Image pull policy that applies to all user-deployed Longhorn components, such as Longhorn Manager, Longhorn driver, and Longhorn UI.

service.manager.nodePort

NodePort port number for Longhorn Manager. When unspecified, Longhorn selects a free port between 30000 and 32767.

service.manager.type

Service type for Longhorn Manager.

service.ui.nodePort

NodePort port number for Longhorn UI. When unspecified, Longhorn selects a free port between 30000 and 32767.

service.ui.type

Service type for Longhorn UI. (Options: "ClusterIP", "NodePort", "LoadBalancer", "Rancher-Proxy")

persistence.backingImage.dataSourceParameters

string

nil

Data source parameters of a backing image used in a Longhorn StorageClass. You can specify a JSON string of a map. (Example: '{\"url\":\"https://backing-image-example.s3-region.amazonaws.com/test-backing-image\"}')

persistence.backingImage.dataSourceType

string

nil

Data source type of a backing image used in a Longhorn StorageClass. If the backing image exists in the cluster, Longhorn uses this setting to verify the image. If the backing image does not exist, Longhorn creates one using the specified data source type.

persistence.backingImage.enable

bool

false

Setting that allows you to use a backing image in a Longhorn StorageClass.

persistence.backingImage.expectedChecksum

string

nil

Expected SHA-512 checksum of a backing image used in a Longhorn StorageClass.

persistence.backingImage.name

string

nil

Backing image to be used for creating and restoring volumes in a Longhorn StorageClass. When no backing images are available, specify the data source type and parameters that Longhorn can use to create a backing image.

persistence.defaultClass

bool

true

Setting that allows you to specify the default Longhorn StorageClass.

persistence.defaultClassReplicaCount

int

3

Replica count of the default Longhorn StorageClass.

persistence.defaultDataLocality

string

"disabled"

Data locality of the default Longhorn StorageClass. (Options: "disabled", "best-effort")

persistence.defaultFsType

string

"ext4"

Filesystem type of the default Longhorn StorageClass.

persistence.defaultMkfsParams

string

""

mkfs parameters of the default Longhorn StorageClass.

persistence.defaultNodeSelector.enable

bool

false

Setting that allows you to enable the node selector for the default Longhorn StorageClass.

persistence.defaultNodeSelector.selector

string

""

Node selector for the default Longhorn StorageClass. Longhorn uses only nodes with the specified tags for storing volume data. (Examples: "storage,fast")

persistence.disableRevisionCounter

string

"true"

Setting that disables the revision counter and thereby prevents Longhorn from tracking all write operations to a volume. When salvaging a volume, Longhorn uses properties of the volume-head-xxx.img file (the last file size and the last time the file was modified) to select the replica to be used for volume recovery.

persistence.migratable

bool

false

Setting that allows you to enable live migration of a Longhorn volume from one node to another.

persistence.nfsOptions

string

""

Set NFS mount options for Longhorn StorageClass for RWX volumes

persistence.reclaimPolicy

string

"Delete"

Reclaim policy that provides instructions for handling of a volume after its claim is released. (Options: "Retain", "Delete")

persistence.recurringJobSelector.enable

bool

false

Setting that allows you to enable the recurring job selector for a Longhorn StorageClass.

persistence.recurringJobSelector.jobList

list

[]

Recurring job selector for a Longhorn StorageClass. Ensure that quotes are used correctly when specifying job parameters. (Example: [{"name":"backup", "isGroup":true}])

persistence.removeSnapshotsDuringFilesystemTrim

string

"ignored"

Setting that allows you to enable automatic snapshot removal during filesystem trim for a Longhorn StorageClass. (Options: "ignored", "enabled", "disabled")

csi.attacherReplicaCount

Replica count of the CSI Attacher. When unspecified, Longhorn uses the default value ("3").

csi.kubeletRootDir

kubelet root directory. When unspecified, Longhorn uses the default value.

csi.provisionerReplicaCount

Replica count of the CSI Provisioner. When unspecified, Longhorn uses the default value ("3").

csi.resizerReplicaCount

Replica count of the CSI Resizer. When unspecified, Longhorn uses the default value ("3").

csi.snapshotterReplicaCount

Replica count of the CSI Snapshotter. When unspecified, Longhorn uses the default value ("3").

longhornManager.log.format

string

"plain"

Format of Longhorn Manager logs. (Options: "plain", "json")

longhornManager.nodeSelector

object

{}

Node selector for Longhorn Manager. Specify the nodes allowed to run Longhorn Manager.

longhornManager.priorityClass

string

"longhorn-critical"

PriorityClass for Longhorn Manager.

longhornManager.serviceAnnotations

object

{}

Annotation for the Longhorn Manager service.

longhornManager.tolerations

list

[]

Toleration for Longhorn Manager on nodes allowed to run Longhorn Manager.

longhornDriver.nodeSelector

object

{}

Node selector for Longhorn Driver. Specify the nodes allowed to run Longhorn Driver.

longhornDriver.priorityClass

string

"longhorn-critical"

PriorityClass for Longhorn Driver.

longhornDriver.tolerations

list

[]

Toleration for Longhorn Driver on nodes allowed to run Longhorn components.

longhornUI.nodeSelector

object

{}

Node selector for Longhorn UI. Specify the nodes allowed to run Longhorn UI.

longhornUI.priorityClass

string

"longhorn-critical"

PriorityClass for Longhorn UI.

longhornUI.replicas

int

2

Replica count for Longhorn UI.

longhornUI.tolerations

list

[]

Toleration for Longhorn UI on nodes allowed to run Longhorn components.

ingress.annotations

string

nil

Ingress annotations in the form of key-value pairs.

ingress.enabled

bool

false

Setting that allows Longhorn to generate ingress records for the Longhorn UI service.

ingress.host

string

"sslip.io"

Hostname of the Layer 7 load balancer.

ingress.ingressClassName

string

nil

IngressClass resource that contains ingress configuration, including the name of the Ingress controller. ingressClassName can replace the kubernetes.io/ingress.class annotation used in earlier Kubernetes releases.

ingress.path

string

"/"

Default ingress path. You can access the Longhorn UI by following the full ingress path {{host}}+{{path}}.

ingress.pathType

string

"ImplementationSpecific"

Ingress path type. To maintain backward compatibility, the default value is "ImplementationSpecific".

ingress.secrets

string

nil

Secret that contains a TLS private key and certificate. Use secrets if you want to use your own certificates to secure ingresses.

ingress.secureBackends

bool

false

Setting that allows you to enable secure connections to the Longhorn UI service via port 443.

ingress.tls

bool

false

Setting that allows you to enable TLS on ingress records.

ingress.tlsSecret

string

"longhorn.local-tls"

TLS secret that contains the private key and certificate to be used for TLS. This setting applies only when TLS is enabled on ingress records.

privateRegistry.createSecret

Setting that allows you to create a private registry secret.

privateRegistry.registryPasswd

Password for authenticating with a private registry.

privateRegistry.registrySecret

Kubernetes secret that allows you to pull images from a private registry. This setting applies only when creation of private registry secrets is enabled. You must include the private registry name in the secret name.

privateRegistry.registryUrl

URL of a private registry. When unspecified, Longhorn uses the default system registry.

privateRegistry.registryUser

User account used for authenticating with a private registry.

metrics.serviceMonitor.additionalLabels

object

{}

Additional labels for the Prometheus ServiceMonitor resource.

metrics.serviceMonitor.annotations

object

{}

Annotations for the Prometheus ServiceMonitor resource.

metrics.serviceMonitor.enabled

bool

false

Setting that allows the creation of a Prometheus ServiceMonitor resource for Longhorn Manager components.

metrics.serviceMonitor.interval

string

""

Interval at which Prometheus scrapes the metrics from the target.

metrics.serviceMonitor.metricRelabelings

list

[]

Configures the relabeling rules to apply to the samples before ingestion. See the Prometheus Operator documentation for formatting details.

metrics.serviceMonitor.relabelings

list

[]

Configures the relabeling rules to apply the target’s metadata labels. See the Prometheus Operator documentation for formatting details.

metrics.serviceMonitor.scrapeTimeout

string

""

Timeout after which Prometheus considers the scrape to be failed.

annotations

{}

Annotation for the Longhorn Manager DaemonSet pods. This setting is optional.

enableGoCoverDir

false

Setting that allows Longhorn to generate code coverage profiles.

enablePSP

false

Setting that allows you to enable pod security policies (PSPs) that allow privileged Longhorn pods to start. This setting applies only to clusters running Kubernetes 1.25 and earlier, and with the built-in Pod Security admission controller enabled.

namespaceOverride

""

Specify override namespace, specifically this is useful for using longhorn as sub-chart and its release namespace is not the longhorn-system.

preUpgradeChecker.jobEnabled

true

Setting that allows Longhorn to perform pre-upgrade checks. Disable this setting when installing Longhorn using Argo CD or other GitOps solutions.

preUpgradeChecker.upgradeVersionCheck

true

Setting that allows Longhorn to perform upgrade version checks after starting the Longhorn Manager DaemonSet Pods. Disabling this setting also disables preUpgradeChecker.jobEnabled. Longhorn recommends keeping this setting enabled.

defaultSettings.allowCollectingLonghornUsageMetrics

Setting that allows Longhorn to periodically collect anonymous usage data for product improvement purposes. Longhorn sends collected data to the Upgrade Responder server, which is the data source of the Longhorn Public Metrics Dashboard (https://metrics.longhorn.io). The Upgrade Responder server does not store data that can be used to identify clients, including IP addresses.

defaultSettings.allowEmptyDiskSelectorVolume

Setting that allows scheduling of empty disk selector volumes to any disk.

defaultSettings.allowEmptyNodeSelectorVolume

Setting that allows scheduling of empty node selector volumes to any node.

defaultSettings.allowRecurringJobWhileVolumeDetached

Setting that allows Longhorn to automatically attach a volume and create snapshots or backups when recurring jobs are run.

defaultSettings.allowVolumeCreationWithDegradedAvailability

Setting that allows you to create and attach a volume without having all replicas scheduled at the time of creation.

defaultSettings.autoCleanupRecurringJobBackupSnapshot

Setting that allows Longhorn to automatically clean up the snapshot generated by a recurring backup job.

defaultSettings.autoCleanupSystemGeneratedSnapshot

Setting that allows Longhorn to automatically clean up the system-generated snapshot after replica rebuilding is completed.

defaultSettings.autoDeletePodWhenVolumeDetachedUnexpectedly

Setting that allows Longhorn to automatically delete a workload pod that is managed by a controller (for example, daemonset) whenever a Longhorn volume is detached unexpectedly (for example, during Kubernetes upgrades). After deletion, the controller restarts the pod and then Kubernetes handles volume reattachment and remounting.

defaultSettings.autoSalvage

Setting that allows Longhorn to automatically salvage volumes when all replicas become faulty (for example, when the network connection is interrupted). Longhorn determines which replicas are usable and then uses these replicas for the volume. This setting is enabled by default.

defaultSettings.backingImageCleanupWaitInterval

Number of minutes that Longhorn waits before cleaning up the backing image file when no replicas in the disk are using it.

defaultSettings.backingImageRecoveryWaitInterval

Number of seconds that Longhorn waits before downloading a backing image file again when the status of all image disk files changes to "failed" or "unknown".

defaultSettings.backupCompressionMethod

Setting that allows you to specify a backup compression method.

defaultSettings.backupConcurrentLimit

Maximum number of worker threads that can concurrently run for each backup.

defaultSettings.backupTarget

Endpoint used to access the backupstore. (Options: "NFS", "CIFS", "AWS", "GCP", "AZURE")

defaultSettings.backupTargetCredentialSecret

Name of the Kubernetes secret associated with the backup target.

defaultSettings.backupstorePollInterval

Number of seconds that Longhorn waits before checking the backupstore for new backups. The default value is "300". When the value is "0", polling is disabled.

defaultSettings.concurrentAutomaticEngineUpgradePerNodeLimit

Maximum number of engines that are allowed to concurrently upgrade on each node after Longhorn Manager is upgraded. When the value is "0", Longhorn does not automatically upgrade volume engines to the new default engine image version.

defaultSettings.concurrentReplicaRebuildPerNodeLimit

Maximum number of replicas that can be concurrently rebuilt on each node.

defaultSettings.concurrentVolumeBackupRestorePerNodeLimit

Maximum number of volumes that can be concurrently restored on each node using a backup. When the value is "0", restoration of volumes using a backup is disabled.

defaultSettings.createDefaultDiskLabeledNodes

Setting that allows Longhorn to automatically create a default disk only on nodes with the label "node.longhorn.io/create-default-disk=true" (if no other disks exist). When this setting is disabled, Longhorn creates a default disk on each node that is added to the cluster.

defaultSettings.defaultDataLocality

Default data locality. A Longhorn volume has data locality if a local replica of the volume exists on the same node as the pod that is using the volume.

defaultSettings.defaultDataPath

Default path for storing data on a host. The default value is "/var/lib/longhorn/".

defaultSettings.defaultLonghornStaticStorageClass

Default Longhorn StorageClass. "storageClassName" is assigned to PVs and PVCs that are created for an existing Longhorn volume. "storageClassName" can also be used as a label, so it is possible to use a Longhorn StorageClass to bind a workload to an existing PV without creating a Kubernetes StorageClass object. The default value is "longhorn-static".

defaultSettings.defaultReplicaCount

Default number of replicas for volumes created using the Longhorn UI. For Kubernetes configuration, modify the numberOfReplicas field in the StorageClass. The default value is "3".

defaultSettings.deletingConfirmationFlag

Flag that prevents accidental uninstallation of Longhorn.

defaultSettings.detachManuallyAttachedVolumesWhenCordoned

Setting that allows automatic detaching of manually-attached volumes when a node is cordoned.

defaultSettings.disableRevisionCounter

Setting that disables the revision counter and thereby prevents Longhorn from tracking all write operations to a volume. When salvaging a volume, Longhorn uses properties of the "volume-head-xxx.img" file (the last file size and the last time the file was modified) to select the replica to be used for volume recovery. This setting applies only to volumes created using the Longhorn UI.

defaultSettings.disableSchedulingOnCordonedNode

Setting that prevents Longhorn Manager from scheduling replicas on a cordoned Kubernetes node. This setting is enabled by default.

defaultSettings.disableSnapshotPurge

Setting that temporarily prevents all attempts to purge volume snapshots.

defaultSettings.engineReplicaTimeout

Timeout between the Longhorn Engine and replicas. Specify a value between "8" and "30" seconds. The default value is "8".

defaultSettings.failedBackupTTL

Number of minutes that Longhorn keeps a failed backup resource. When the value is "0", automatic deletion is disabled.

defaultSettings.fastReplicaRebuildEnabled

Setting that allows fast rebuilding of replicas using the checksum of snapshot disk files. Before enabling this setting, you must set the snapshot-data-integrity value to "enable" or "fast-check".

defaultSettings.freezeFilesystemForSnapshot

Setting that freezes the filesystem on the root partition before a snapshot is created.

defaultSettings.guaranteedInstanceManagerCPU

Percentage of the total allocatable CPU resources on each node to be reserved for each instance manager pod when the V1 Data Engine is enabled. The default value is "12".

defaultSettings.kubernetesClusterAutoscalerEnabled

Setting that notifies Longhorn that the cluster is using the Kubernetes Cluster Autoscaler.

defaultSettings.logLevel

Log levels that indicate the type and severity of logs in Longhorn Manager. The default value is "Info". (Options: "Panic", "Fatal", "Error", "Warn", "Info", "Debug", "Trace")

defaultSettings.longGRPCTimeOut

Number of seconds that Longhorn allows for the completion of replica rebuilding and snapshot cloning operations.

defaultSettings.nodeDownPodDeletionPolicy

Policy that defines the action Longhorn takes when a volume is stuck with a StatefulSet or Deployment pod on a node that failed.

defaultSettings.nodeDrainPolicy

Policy that defines the action Longhorn takes when a node with the last healthy replica of a volume is drained.

defaultSettings.orphanAutoDeletion

Setting that allows Longhorn to automatically delete an orphaned resource and the corresponding data (for example, stale replicas). Orphaned resources on failed or unknown nodes are not automatically cleaned up.

defaultSettings.priorityClass

PriorityClass for system-managed Longhorn components. This setting can help prevent Longhorn components from being evicted under Node Pressure. Notice that this will be applied to Longhorn user-deployed components by default if there are no priority class values set yet, such as longhornManager.priorityClass.

defaultSettings.recurringFailedJobsHistoryLimit

Maximum number of failed recurring backup and snapshot jobs to be retained. When the value is "0", a history of failed recurring jobs is not retained.

defaultSettings.recurringJobMaxRetention

Maximum number of snapshots or backups to be retained.

defaultSettings.recurringSuccessfulJobsHistoryLimit

Maximum number of successful recurring backup and snapshot jobs to be retained. When the value is "0", a history of successful recurring jobs is not retained.

defaultSettings.removeSnapshotsDuringFilesystemTrim

Setting that allows Longhorn to automatically mark the latest snapshot and its parent files as removed during a filesystem trim. Longhorn does not remove snapshots containing multiple child files.

defaultSettings.replicaAutoBalance

Setting that automatically rebalances replicas when an available node is discovered.

defaultSettings.replicaDiskSoftAntiAffinity

Setting that allows scheduling on disks with existing healthy replicas of the same volume. This setting is enabled by default.

defaultSettings.replicaFileSyncHttpClientTimeout

Number of seconds that an HTTP client waits for a response from a File Sync server before considering the connection to have failed.

defaultSettings.replicaReplenishmentWaitInterval

Number of seconds that Longhorn waits before reusing existing data on a failed replica instead of creating a new replica of a degraded volume.

defaultSettings.replicaSoftAntiAffinity

Setting that allows scheduling on nodes with healthy replicas of the same volume. This setting is disabled by default.

defaultSettings.replicaZoneSoftAntiAffinity

Setting that allows Longhorn to schedule new replicas of a volume to nodes in the same zone as existing healthy replicas. Nodes that do not belong to any zone are treated as existing in the zone that contains healthy replicas. When identifying zones, Longhorn relies on the label "topology.kubernetes.io/zone=" in the Kubernetes node object.

defaultSettings.restoreConcurrentLimit

Maximum number of worker threads that can concurrently run for each restore operation.

defaultSettings.restoreVolumeRecurringJobs

Setting that restores recurring jobs from a backup volume on a backup target and creates recurring jobs if none exist during backup restoration.

defaultSettings.snapshotDataIntegrity

Setting that allows you to enable and disable snapshot hashing and data integrity checks.

defaultSettings.snapshotDataIntegrityCronjob

Setting that defines when Longhorn checks the integrity of data in snapshot disk files. You must use the Unix cron expression format.

defaultSettings.snapshotDataIntegrityImmediateCheckAfterSnapshotCreation

Setting that allows disabling of snapshot hashing after snapshot creation to minimize impact on system performance.

defaultSettings.snapshotMaxCount

Maximum snapshot count for a volume. The value should be between 2 to 250

defaultSettings.storageMinimalAvailablePercentage

Percentage of minimum available disk capacity. When the minimum available capacity exceeds the total available capacity, the disk becomes unschedulable until more space is made available for use. The default value is "25".

defaultSettings.storageNetwork

Storage network for in-cluster traffic. When unspecified, Longhorn uses the Kubernetes cluster network.

defaultSettings.storageOverProvisioningPercentage

Percentage of storage that can be allocated relative to hard drive capacity. The default value is "100".

defaultSettings.storageReservedPercentageForDefaultDisk

Percentage of disk space that is not allocated to the default disk on each new Longhorn node.

defaultSettings.supportBundleFailedHistoryLimit

Maximum number of failed support bundles that can exist in the cluster. When the value is "0", Longhorn automatically purges all failed support bundles.

defaultSettings.systemManagedComponentsNodeSelector

Node selector for system-managed Longhorn components.

defaultSettings.systemManagedPodsImagePullPolicy

Image pull policy for system-managed pods, such as Instance Manager, engine images, and CSI Driver. Changes to the image pull policy are applied only after the system-managed pods restart.

defaultSettings.taintToleration

Taint or toleration for system-managed Longhorn components. Specify values using a semicolon-separated list in kubectl taint syntax (Example: key1=value1:effect; key2=value2:effect).

defaultSettings.upgradeChecker

Upgrade Checker that periodically checks for new Longhorn versions. When a new version is available, a notification appears on the Longhorn UI. This setting is enabled by default

defaultSettings.v1DataEngine

Setting that allows you to enable the V1 Data Engine.

defaultSettings.v2DataEngine

Setting that allows you to enable the V2 Data Engine, which is based on the Storage Performance Development Kit (SPDK). The V2 Data Engine is a preview feature and should not be used in production environments.

defaultSettings.v2DataEngineGuaranteedInstanceManagerCPU

Number of millicpus on each node to be reserved for each Instance Manager pod when the V2 Data Engine is enabled. The default value is "1250".

defaultSettings.v2DataEngineHugepageLimit

Setting that allows you to configure maximum huge page size (in MiB) for the V2 Data Engine.

defaultSettings.v2DataEngineLogFlags

Setting that allows you to configure the log flags of the SPDK target daemon (spdk_tgt) of the V2 Data Engine.

defaultSettings.v2DataEngineLogLevel

Setting that allows you to configure the log level of the SPDK target daemon (spdk_tgt) of the V2 Data Engine.

defaultSettings.autoCleanupSnapshotWhenDeleteBackup

Setting that automatically cleans up the snapshot when the backup is deleted.