This section contains procedures about maintaining Oracle ZFS Storage Appliance NAS devices that are attached to a cluster. If a device's maintenance procedure might jeopardize the device's availability to the cluster, you must always perform the steps in How to Prepare the Cluster for Oracle ZFS Storage Appliance NAS Device Maintenance before performing the maintenance procedure. After performing the maintenance procedure, perform the steps in How to Restore Cluster Configuration After Oracle ZFS Storage Appliance NAS Device Maintenance to return the cluster to its original configuration.