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 SUSE Storage UI 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.

global.imagePullSecrets

list

[]

Global override for image pull secrets for container registry.

global.imageRegistry

string

"docker.io"

Global override for container image registry.

global.nodeSelector

object

{}

Node selector for nodes allowed to run user-deployed components such as Longhorn Manager, Longhorn UI, and Longhorn Driver Deployer.

global.timezone

string

""

Set container timezone (TZ env) for all Longhorn workloads. Leave empty to use container default.

global.tolerations

list

[]

Toleration for nodes allowed to run user-deployed components such as Longhorn Manager, Longhorn UI, and Longhorn Driver Deployer.

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.registry

string

""

Registry for the CSI attacher image. When unspecified, SUSE Storage uses the default value.

image.csi.attacher.repository

string

"longhornio/csi-attacher"

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

image.csi.attacher.tag

string

"v4.10.0-20251226"

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

image.csi.livenessProbe.registry

string

""

Registry for the CSI liveness probe image. When unspecified, SUSE Storage uses the default value.

image.csi.livenessProbe.repository

string

"longhornio/livenessprobe"

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

image.csi.livenessProbe.tag

string

"v2.17.0-20251226"

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

image.csi.nodeDriverRegistrar.registry

string

""

Registry for the CSI Node Driver Registrar image. When unspecified, SUSE Storage uses the default value.

image.csi.nodeDriverRegistrar.repository

string

"longhornio/csi-node-driver-registrar"

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

image.csi.nodeDriverRegistrar.tag

string

"v2.15.0-20251226"

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

image.csi.provisioner.registry

string

""

Registry for the CSI Provisioner image. When unspecified, SUSE Storage uses the default value.

image.csi.provisioner.repository

string

"longhornio/csi-provisioner"

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

image.csi.provisioner.tag

string

"v5.3.0-20251226"

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

image.csi.resizer.registry

string

""

Registry for the CSI Resizer image. When unspecified, SUSE Storage uses the default value.

image.csi.resizer.repository

string

"longhornio/csi-resizer"

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

image.csi.resizer.tag

string

"v2.0.0-20251226"

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

image.csi.snapshotter.registry

string

""

Registry for the CSI Snapshotter image. When unspecified, SUSE Storage uses the default value.

image.csi.snapshotter.repository

string

"longhornio/csi-snapshotter"

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

image.csi.snapshotter.tag

string

"v8.4.0-20251226"

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

image.longhorn.backingImageManager.registry

string

""

Registry for the Backing Image Manager image. When unspecified, SUSE Storage uses the default value.

image.longhorn.backingImageManager.repository

string

"longhornio/backing-image-manager"

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

image.longhorn.backingImageManager.tag

string

"v1.11.0"

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

image.longhorn.engine.registry

string

""

Registry for the Longhorn Engine image.

image.longhorn.engine.repository

string

"longhornio/longhorn-engine"

Repository for the Longhorn Engine image.

image.longhorn.engine.tag

string

"v1.11.0"

Tag for the Longhorn Engine image.

image.longhorn.instanceManager.registry

string

""

Registry for the Longhorn Instance Manager image.

image.longhorn.instanceManager.repository

string

"longhornio/longhorn-instance-manager"

Repository for the Longhorn Instance Manager image.

image.longhorn.instanceManager.tag

string

"v1.11.0"

Tag for the Longhorn Instance Manager image.

image.longhorn.manager.registry

string

""

Registry for the Longhorn Manager image.

image.longhorn.manager.repository

string

"longhornio/longhorn-manager"

Repository for the Longhorn Manager image.

image.longhorn.manager.tag

string

"v1.11.0"

Tag for the Longhorn Manager image.

image.longhorn.shareManager.registry

string

""

Registry for the Longhorn Share Manager image.

image.longhorn.shareManager.repository

string

"longhornio/longhorn-share-manager"

Repository for the Longhorn Share Manager image.

image.longhorn.shareManager.tag

string

"v1.11.0"

Tag for the Longhorn Share Manager image.

image.longhorn.supportBundleKit.registry

string

""

Registry for the Longhorn Support Bundle Manager image.

image.longhorn.supportBundleKit.repository

string

"longhornio/support-bundle-kit"

Repository for the Longhorn Support Bundle Manager image.

image.longhorn.supportBundleKit.tag

string

"v0.0.79"

Tag for the Longhorn Support Bundle Manager image.

image.longhorn.ui.registry

string

""

Registry for the SUSE Storage UI image.

image.longhorn.ui.repository

string

"longhornio/longhorn-ui"

Repository for the SUSE Storage UI image.

image.longhorn.ui.tag

string

"v1.11.0"

Tag for the SUSE Storage UI image.

image.openshift.oauthProxy.registry

string

""

Registry for the OAuth Proxy image. Specify the upstream image (for example, "quay.io/openshift/origin-oauth-proxy"). This setting applies only to OpenShift users.

image.openshift.oauthProxy.repository

string

""

Repository for the OAuth Proxy image. Specify the upstream image (for example, "quay.io/openshift/origin-oauth-proxy"). This setting applies only to OpenShift users.

image.openshift.oauthProxy.tag

string

""

Tag for the OAuth Proxy image. Specify OCP/OKD version 4.1 or later (including version 4.18, which is available at quay.io/openshift/origin-oauth-proxy:4.18). This setting applies only to OpenShift users.

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, SUSE Storage selects a free port between 30000 and 32767.

service.manager.type

Service type for Longhorn Manager.

service.ui.annotations

Annotation for the SUSE Storage UI service.

service.ui.labels

service.ui.loadBalancerClass

Class of a load balancer implementation

service.ui.nodePort

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

service.ui.type

Service type for SUSE Storage 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, SUSE Storage uses this setting to verify the image. If the backing image does not exist, SUSE Storage 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 SUSE Storage can use to create a backing image.

persistence.backupTargetName

string

"default"

Setting that allows you to specify the backup target for the default Longhorn StorageClass.

persistence.dataEngine

string

"v1"

Setting that allows you to specify the data engine version for the default Longhorn StorageClass. (Options: "v1", "v2")

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.defaultDiskSelector.enable

bool

false

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

persistence.defaultDiskSelector.selector

string

""

Disk selector for the default Longhorn StorageClass. Longhorn uses only disks with the specified tags for storing volume data. (Examples: "nvme,sata")

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. SUSE Storage 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 SUSE Storage from tracking all write operations to a volume. When salvaging a volume, SUSE Storage 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.unmapMarkSnapChainRemoved

string

"ignored"

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

persistence.volumeBindingMode

string

"Immediate"

VolumeBindingMode controls when volume binding and dynamic provisioning should occur. (Options: "Immediate", "WaitForFirstConsumer") (Defaults to "Immediate")

csi.attacherReplicaCount

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

csi.kubeletRootDir

kubelet root directory. When unspecified, SUSE Storage uses the default value.

csi.podAntiAffinityPreset

Configures Pod anti-affinity to prevent multiple instances on the same node. Use soft (tries to separate) or hard (must separate). When unspecified, SUSE Storage uses the default value ("soft").

csi.provisionerReplicaCount

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

csi.resizerReplicaCount

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

csi.snapshotterReplicaCount

Replica count of the CSI Snapshotter. When unspecified, SUSE Storage 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.resources

string

nil

Resource requests and limits for Longhorn Manager pods.

longhornManager.serviceAnnotations

object

{}

Annotation for the Longhorn Manager service.

longhornManager.serviceLabels

object

{}

longhornManager.tolerations

list

[]

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

longhornManager.updateStrategy.rollingUpdate.maxUnavailable

string

"100%"

longhornDriver.log.format

string

"plain"

Format of longhorn-driver logs. (Options: "plain", "json")

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.affinity

object

{"podAntiAffinity":{"preferredDuringSchedulingIgnoredDuringExecution":[{"podAffinityTerm":{"labelSelector":{"matchExpressions":[{"key":"app","operator":"In","values":["longhorn-ui"]}]},"topologyKey":"kubernetes.io/hostname"},"weight":1}]}}

Affinity for SUSE Storage UI pods. Specify the affinity you want to use for SUSE Storage UI.

longhornUI.nodeSelector

object

{}

Node selector for SUSE Storage UI. Specify the nodes allowed to run SUSE Storage UI.

longhornUI.priorityClass

string

"longhorn-critical"

PriorityClass for SUSE Storage UI.

longhornUI.replicas

int

2

Replica count for SUSE Storage UI.

longhornUI.tolerations

list

[]

Toleration for SUSE Storage 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 SUSE Storage to generate ingress records for the SUSE Storage UI service.

ingress.extraHosts

list

[]

Extra hostnames for TLS (Subject Alternative Names - SAN). Used when you need multiple FQDNs for the same ingress. Example: extraHosts: - longhorn.example.com - longhorn-ui.internal.local

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 SUSE Storage 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 to use your own certificates to secure ingresses.

ingress.secureBackends

bool

false

Setting that allows you to enable secure connections to the SUSE Storage 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.

httproute.annotations

object

{}

Annotations for the HTTPRoute resource in the form of key-value pairs.

httproute.enabled

bool

false

Setting that allows SUSE Storage to generate HTTPRoute records for the SUSE Storage UI service using Gateway API.

httproute.hostnames

list

[]

List of hostnames for the HTTPRoute. Multiple hostnames are supported.

httproute.parentRefs

list

[]

Gateway references for HTTPRoute. Specify which Gateway(s) should handle this route.

httproute.path

string

"/"

Default path for HTTPRoute. You can access the SUSE Storage UI by following the full path.

httproute.pathType

string

"PathPrefix"

Path match type for HTTPRoute. (Options: "Exact", "PathPrefix")

privateRegistry.createSecret

Set to true to automatically create a new private registry secret.

privateRegistry.registryPasswd

Password for authenticating with a private registry.

privateRegistry.registrySecret

If create a new private registry secret is true, create a Kubernetes secret with this name; else use the existing secret of this name. Use it to pull images from your private registry.

privateRegistry.registryUrl

URL of a private registry. When unspecified, SUSE Storage 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.

defaultBackupStore

{"backupTarget":null,"backupTargetCredentialSecret":null,"pollInterval":null}

Setting that allows you to update the default backupstore.

defaultBackupStore.backupTarget

nil

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

defaultBackupStore.backupTargetCredentialSecret

nil

Name of the Kubernetes secret associated with the default backup target.

defaultBackupStore.pollInterval

nil

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

enableGoCoverDir

false

Setting that allows SUSE Storage to generate code coverage profiles.

enablePSP

false

Setting that allows you to enable pod security policies (PSPs) that allow privileged SUSE Storage 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.

extraObjects

[]

Add extra objects manifests.

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 SUSE Storage to perform pre-upgrade checks. Disable this setting when installing SUSE Storage using Argo CD or other GitOps solutions.

preUpgradeChecker.upgradeVersionCheck

true

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

defaultSettings.allowCollectingLonghornUsageMetrics

Setting that allows SUSE Storage to periodically collect anonymous usage data for product improvement purposes. SUSE Storage 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 SUSE Storage 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 SUSE Storage to automatically clean up the snapshot generated by a recurring backup job.

defaultSettings.autoCleanupSnapshotAfterOnDemandBackupCompleted

Setting that automatically cleans up the snapshot after the on-demand backup is completed.

defaultSettings.autoCleanupSnapshotWhenDeleteBackup

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

defaultSettings.autoCleanupSystemGeneratedSnapshot

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

defaultSettings.autoDeletePodWhenVolumeDetachedUnexpectedly

Setting that allows SUSE Storage 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 SUSE Storage to automatically salvage volumes when all replicas become faulty (for example, when the network connection is interrupted). SUSE Storage 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 SUSE Storage waits before cleaning up the backing image file when no replicas in the disk are using it.

defaultSettings.backingImageRecoveryWaitInterval

Number of seconds that SUSE Storage 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.backupExecutionTimeout

Number of minutes that Longhorn allows for the backup execution. The default value is "1".

defaultSettings.blacklistForAutoDeletePodWhenVolumeDetachedUnexpectedly

Blacklist of controller api/kind values for the setting Automatically Delete Workload Pod when the Volume Is Detached Unexpectedly. If a workload pod is managed by a controller whose api/kind is listed in this blacklist, Longhorn will not automatically delete the pod when its volume is unexpectedly detached. Multiple controller api/kind entries can be specified, separated by semicolons. For example: apps/StatefulSet;apps/DaemonSet. Note that the controller api/kind is case sensitive and must exactly match the api/kind in the workload pod’s owner reference.

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", SUSE Storage 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 SUSE Storage 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, SUSE Storage creates a default disk on each node that is added to the cluster.

defaultSettings.dataEngineCPUMask

Applies only to the V2 Data Engine. Specifies the CPU cores on which the Storage Performance Development Kit (SPDK) target daemon runs. The daemon is deployed in each Instance Manager pod. Ensure that the number of assigned cores does not exceed the guaranteed Instance Manager CPUs for the V2 Data Engine. The default value is "{"v2":"0x1"}".

defaultSettings.dataEngineHugepageEnabled

Applies only to the V2 Data Engine. Enables hugepages for the Storage Performance Development Kit (SPDK) target daemon. If disabled, legacy memory is used. Allocation size is set via the Data Engine Memory Size setting.

defaultSettings.dataEngineLogFlags

Applies only to the V2 Data Engine. Specifies the log flags for the Storage Performance Development Kit (SPDK) target daemon.

defaultSettings.dataEngineLogLevel

Applies only to the V2 Data Engine. Specifies the log level for the Storage Performance Development Kit (SPDK) target daemon. Supported values are: Error, Warning, Notice, Info, and Debug. The default is Notice.

defaultSettings.dataEngineMemorySize

Applies only to the V2 Data Engine. Specifies the hugepage size, in MiB, for the Storage Performance Development Kit (SPDK) target daemon. The default value is "{"v2":"2048"}"

defaultSettings.defaultBackupBlockSize

Specifies the default backup block size, in MiB, used when creating a new volume. Supported values are 2 or 16.

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 to use for storing data on a host. An absolute directory path indicates a filesystem-type disk used by the V1 Data Engine, while a path to a block device indicates a block-type disk used by the V2 Data Engine. The default value is "/var/lib/longhorn/".

defaultSettings.defaultLonghornStaticStorageClass

Default name of SUSE Storage static 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. "storageClassName" needs to be an existing StorageClass. The default value is "longhorn-static".

defaultSettings.defaultReplicaCount

Default number of replicas for volumes created using the SUSE Storage UI. For Kubernetes configuration, modify the numberOfReplicas field in the StorageClass. The default value is "{"v1":"3","v2":"3"}".

defaultSettings.defaultUblkNumberOfQueue

This setting specifies the default the number of queues for ublk frontend. This setting applies to volumes using the V2 Data Engine with Ublk front end. Individual volumes can override this setting by specifying their own number of queues for ublk.

defaultSettings.defaultUblkQueueDepth

This setting specifies the default depth of each queue for Ublk frontend. This setting applies to volumes using the V2 Data Engine with Ublk front end. Individual volumes can override this setting by specifying their own Ublk queue depth.

defaultSettings.deletingConfirmationFlag

Flag that prevents accidental uninstallation of SUSE Storage.

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 SUSE Storage from tracking all write operations to a volume. When salvaging a volume, SUSE Storage 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 SUSE Storage 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.endpointNetworkForRWXVolume

Specifies a dedicated network for mounting RWX (ReadWriteMany) volumes. Leave this blank to use the default Kubernetes cluster network. Caution: This setting should change after all RWX volumes are detached because some Longhorn component pods must be recreated to apply the setting. You cannot modify this setting while RWX volumes are still attached.

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 SUSE Storage 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 file system 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. The default value is {"v1":"12","v2":"12"}.

defaultSettings.instanceManagerPodLivenessProbeTimeout

In seconds. The setting specifies the timeout for the instance manager pod liveness probe. The default value is 10 seconds.

defaultSettings.kubernetesClusterAutoscalerEnabled

Setting that notifies SUSE Storage 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.logPath

Specifies the directory on the host where Longhorn stores log files for the instance manager pod. Currently, it is only used for instance manager pods in the v2 data engine.

defaultSettings.longGRPCTimeOut

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

defaultSettings.managerUrl

The external URL used to access the Longhorn Manager API. When set, this URL is returned in API responses (the actions and links fields) instead of the internal pod IP. This is useful when accessing the API through Ingress or Gateway API HTTPRoute. Format: scheme://host[:port] (for example, https://longhorn.example.com or https://longhorn.example.com:8443). Leave it empty to use the default behavior.

defaultSettings.nodeDiskHealthMonitoring

Controls whether Longhorn monitors and records health information for node disks. When disabled, disk health checks and status updates are skipped.

defaultSettings.nodeDownPodDeletionPolicy

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

defaultSettings.nodeDrainPolicy

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

defaultSettings.offlineReplicaRebuilding

Enables automatic rebuilding of degraded replicas while the volume is detached. This setting only takes effect if the individual volume setting is set to "ignored" or "enabled".

defaultSettings.orphanResourceAutoDeletion

Enables Longhorn to automatically delete orphaned resources and their associated data or processes (e.g., stale replicas). Orphaned resources on failed or unknown nodes are not automatically cleaned up. You need to specify the resource types to be deleted using a semicolon-separated list (e.g., replica-data;instance). Available items are: replica-data, instance.

defaultSettings.orphanResourceAutoDeletionGracePeriod

Specifies the wait time, in seconds, before Longhorn automatically deletes an orphaned Custom Resource (CR) and its associated resources. Note that if a user manually deletes an orphaned CR, the deletion occurs immediately and does not respect this grace period.

defaultSettings.priorityClass

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

defaultSettings.rebuildConcurrentSyncLimit

Maximum number of file synchronization operations that can run concurrently during a single replica rebuild. Right now, it’s for v1 data engine only.

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 SUSE Storage to automatically mark the latest snapshot and its parent files as removed during a file system trim. SUSE Storage does not remove snapshots containing multiple child files.

defaultSettings.replicaAutoBalance

Setting that automatically re-balances 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.replicaRebuildingBandwidthLimit

This setting specifies the default write bandwidth limit (in megabytes per second) for volume replica rebuilding when using the v2 data engine (SPDK). If this value is set to 0, there will be no write bandwidth limitation. Individual volumes can override this setting by specifying their own rebuilding bandwidth limit.

defaultSettings.replicaReplenishmentWaitInterval

Number of seconds that SUSE Storage 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 SUSE Storage 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, SUSE Storage 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.rwxVolumeFastFailover

Setting that allows Longhorn to detect node failure and immediately migrate affected RWX volumes.

defaultSettings.snapshotDataIntegrity

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

defaultSettings.snapshotDataIntegrityCronjob

Setting that defines when SUSE Storage 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.snapshotHeavyTaskConcurrentLimit

Setting that controls how many snapshot heavy task operations (such as purge and clone) can run concurrently per node. This is a best-effort mechanism: due to the distributed nature of the system, temporary oversubscription may occur. The limiter reduces worst-case overload but does not guarantee perfect enforcement.

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, SUSE Storage 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", SUSE Storage automatically purges all failed support bundles.

defaultSettings.systemManagedCSIComponentsResourceLimits

Resource limits for system-managed CSI components. This setting allows you to configure CPU and memory requests/limits for CSI attacher, provisioner, resizer, snapshotter, and plugin components. Supported components: csi-attacher, csi-provisioner, csi-resizer, csi-snapshotter, longhorn-csi-plugin, node-driver-registrar, longhorn-liveness-probe. Notice that changing resource limits will cause CSI components to restart, which may temporarily affect volume provisioning and attach/detach operations until the components are ready. The value should be a JSON object with component names as keys and ResourceRequirements as values.

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 SUSE Storage versions. When a new version is available, a notification appears on the SUSE Storage UI. This setting is enabled by default.

defaultSettings.upgradeResponderURL

The Upgrade Responder sends a notification whenever a new Longhorn version that you can upgrade to becomes available. The default value is https://longhorn-upgrade-responder.rancher.io/v1/checkupgrade.

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 an experimental feature and should not be used in production environments.