QThin uses our advanced storage pool architecture to achieve this functionality. The capacity of the storage pool is shared by all volumes inside the pool. This means that the XCubeSAN is able to support more host servers with a fewer number of hard drives, thereby reducing initial acquisition cost. As the storage pool fills, you can add extra disk groups to expand the storage pool capacity without downtime.
You can set as many as six policies for each storage pool to define what to do when the predefined storage utilization threshold hits the limits. Starting with 60% utilization, the administrator can choose the level of warning and what action they would like to take, such as deleting snapshots, space reclamation, and de-activating the storage pool, allowing more flexibility and simpler administration.
QThin can release a volume’s previously provisioned but unused capacity, helping to avoid a poor resource utilization rate and, in fact, drive utilization towards 100% with very little effort from system administrators. Available disk space can be made available to other hosts and servers. The XCubeSAN system can serve more hosts and servers to achieve a higher consolidation ratio. Therefore, QThin can significantly help reduce your total cost of ownership.