• All data is fully replicated to the node
• All blocking cluster faults are resolved
• All temporary standby node assignments for the volumes hosted on the node have been inactivated
After these criteria are met, the node is transitioned out of maintenance mode. If these criteria are not met
within one hour, the node will fail to transition out of maintenance mode.
You can see the states of maintenance mode operations when working with maintenance mode using the
Element API:
• Disabled: No maintenance has been requested.
• FailedToRecover: The node failed to recover from maintenance.
• RecoveringFromMaintenance: The node is in the process of recovering from maintenance.
• PreparingForMaintenance: Actions are being taken to allow a node to have maintenance performed.
• ReadyForMaintenance: The node is ready for maintenance to be performed.
Find more information
• SolidFire and Element Documentation Center
Volumes
Storage is provisioned in the NetApp Element system as volumes. Volumes are block
devices accessed over the network using iSCSI or Fibre Channel clients.
The NetApp Element Plug-in for vCenter Server enables you to create, view, edit, delete, clone, backup or
restore volumes for user accounts. You can also manage each volume on a cluster, and add or remove
volumes in volume access groups.
Persistent volumes
Persistent volumes allow management node configuration data to be stored on a specified storage cluster,
rather than locally with a VM, so that data can be preserved in the event of management node loss or removal.
Persistent volumes are an optional yet recommended management node configuration.
If you are deploying a management node for NetApp HCI using the NetApp Deployment Engine, persistent
volumes are enabled and configured automatically.
An option to enable persistent volumes is included in the installation and upgrade scripts when deploying a
new management node. Persistent volumes are volumes on an Element software-based storage cluster that
contain management node configuration information for the host management node VM that persists beyond
the life of the VM. If the management node is lost, a replacement management node VM can reconnect to and
recover configuration data for the lost VM.
Persistent volumes functionality, if enabled during installation or upgrade, automatically creates multiple
volumes with NetApp-HCI- pre-pended to the name on the assigned cluster. These volumes, like any Element
software-based volume, can be viewed using the Element software web UI, NetApp Element Plug-in for
vCenter Server, or API, depending on your preference and installation. Persistent volumes must be up and
running with an iSCSI connection to the management node to maintain current configuration data that can be
used for recovery.
To Next Page
Loading...
Need help?
General
