Most management tasks for FlexVol volumes are available to the SVM administrator. A few, such as promoting a volume to be the root volume of a Storage Virtual Machine (SVM) and moving or copying volumes, are available only to cluster administrators.
Volume junction usage rules
Volume junctions are a way to join individual volumes together into a single, logical namespace to enable data access to NAS clients. Understanding how volume junctions are formed helps you to interpret and apply the usage rules.
How you use space management capabilities
To use the storage provided by FlexVol volumes as effectively as possible, you need to understand the space management capabilities that help you balance overall available storage against required user and application storage needs.
Using FlexCache volumes to accelerate data access A FlexCache volume is a sparsely-populated volume on a cluster node, that is backed by a volume, usually present on a different node within that cluster. A sparsely-populated volume or a sparse volume provides access to data in the backing volume (also called the origin volume) without requiring that all the data be in the sparse volume.
Using FlexClone volumes to create efficient copies of your FlexVol volumes
FlexClone volumes are writable, point-in-time copies of a parent FlexVol volume. FlexClone volumes are space-efficient because they share the same data blocks with their parent FlexVol volumes for common data. The Snapshot copy used to create a FlexClone volume is also shared with the parent volume.
Using a load-sharing mirror to balance loads
A load-sharing mirror reduces the network traffic to a FlexVol volume by providing additional read-only access to clients. You can create and manage load-sharing mirrors to distribute read-only traffic away from a FlexVol volume. Load-sharing mirrors do not support Infinite Volumes.