- Notes, cautions, and warnings
- Additional Resources
- Volumes
- Volume groups overview
- Hosts and host group configurations
- Data mobility for volumes and volume groups
- Thin clones
- Quality of Service (QoS) policies
- Performance policies
Storage provisioning is the process of allocating available drive capacity to meet the capacity, performance, and availability requirements of hosts and applications. In PowerStore, volumes and file systems are thin provisioned to optimize the use of available storage.
Thin provisioning works as follows:
Thin provisioning allows multiple storage resources to subscribe to a common storage capacity. Therefore, it allows organizations to purchase less storage capacity up front, and increase available drive capacity on an on-demand basis, according to actual storage usage. While the system allocates only a portion of the physical capacity requested by each storage resource, it leaves the remaining storage available for other storage resources to use.
The system reports the capacity savings gained from thin provisioning using the Thin Savings metric, which is calculated for volume families and file systems. A volume family consists of a volume and its associated thin clones and snapshots.
Thin provisioning is always enabled.