The functionality of the module might change, but the main features will remain. Compatibility with future versions is guaranteed, but might require additional migration steps.

The module is guaranteed to work only with stock kernels that are shipped with the supported distributions.

The module may work with other kernels or distributions, but its stable operation and availability of all features is not guaranteed.

BlockDevice

Scope: Cluster
Version: v1alpha1

The resource displays up-to-date information about available block devices on nodes that can be used by the sds-node-configurator controller for LVM operations.

The resource is created and managed by the controller only. Manual modification of the resource is prohibited.

LVMLogicalVolume

Scope: Cluster
Version: v1alpha1

The LVMLogicalVolume resource defines the storage where a PV will be created in.
  • spec
    object
    • spec.actualLVNameOnTheNode
      string

      Required value

      Actual LV name on the node.

      Minimal length: 1

      Pattern: ^[a-z0-9]([a-z0-9-.]{0,251}[a-z0-9])?$

    • spec.lvmVolumeGroupName
      string

      Required value

      LVMVolumeGroup resource’s name which VG will be used for LV creation.

      Minimal length: 1

      Pattern: ^[a-z0-9]([a-z0-9-.]{0,251}[a-z0-9])?$

    • spec.size
      integer or string

      Required value

      The desired LV size. Might be specified as number or percent size of total VG or thin pool space (for thin pool total space is counted by actual thin pool size multiply by allocationLimit value)

      Note, that if you specify the percent size, the LV will be automatically extended when VG, thin pool or thin pool’s allocationLimit value is extended.

      Minimal length: 1

      Pattern: ^[0-9]+(\.[0-9]+)?(E|P|T|G|M|k|Ei|Pi|Ti|Gi|Mi|Ki)?$|^[1-9][0-9]?%$|100%

    • spec.thick
      object
      • spec.thick.contiguous
        boolean

        Required value

        If true, the Logical Volume will be created with the contiguous flag. Use it carefully as LV might not be created even if there is enough space in VG.
    • spec.thin
      object
      Specifies used ThinPool. Needs only if LV has Thin type.
      • spec.thin.poolName
        string

        Required value

        Used thin pool name.

        Minimal length: 1

        Pattern: ^.*$

    • spec.type
      string

      Required value

      LV type: Thick or Thin.

      Allowed values: Thick, Thin

LvmVolumeGroup

Scope: Cluster
Version: v1alpha1

An interface for managing Volume Groups and Thin pools on the nodes.

These resources might be created both by a user and the sds-node-configurator controller. The sds-node-configurator controller will automatically create an LVMVolumeGroup resource if it detects an existing Volume Group on a node tagged with ‘storage.deckhouse.io/enabled=true’. The controller will fill in both the ‘spec’ and ‘status’ fields. The spec.thinPools field must be filled in by yourself.

  • spec
    object
    • spec.actualVGNameOnTheNode
      string

      Required value

      The desired name of a Volume Group. Must be unique for the node it is on.

      This field is immutable.

    • spec.blockDeviceNames
      array of strings

      Required value

      An array of block device resource names to create a Volume Group.

      Note that the selected block devices must belong to the same node for a Local Volume Group.

    • spec.thinPools
      array of objects
      The desired Thin-pool configuration.
      • spec.thinPools.allocationLimit
        string
        Thin pool oversize limit. Default is 150%.

        Default: 150%

        Pattern: ^[1-9][0-9]{2,3}%$

      • spec.thinPools.name
        string

        The desired thin pool name.

        This field is immutable.

      • spec.thinPools.size
        integer or string

        The desired thin pool size. Might be specified as number or percent size of total VG space.

        Note, that if you specify the percent size, the thin pool will be automatically extended when VG is extended.

        Pattern: ^[0-9]+(\.[0-9]+)?(E|P|T|G|M|k|Ei|Pi|Ti|Gi|Mi|Ki)?$|^[1-9][0-9]?%$|100%

    • spec.type
      string

      Required value

      The type of a Volume Group. Might be:

      • Local, that is, local if the devices used are not distributed (not Shared LUN).

      Allowed values: Local