Pooled partition layout and expressions

A set of storage devices may cooperate to share a pool of storage space as a redundant array (RAID) system inexpensive disks. However, details of the allocation of capacity to the representation and pools of the pool, there may be to impose restrictions on and / or stored set enables advantages. Being presented herein is a technique for generating a representation of pooled partitions on one or more storage devices, pool, a pair of space that is expressed by the pool; Share pool wherein the pool configuration settings that represent the physical area of ​​a set of storage devices and the storage device to a set of spreading to map to logical region of the space. The flexibility of these pools techniques, flexible capacity allocation, bound was delayed, thin provisioning and different sets of storage devices allows functions such as participation of the storage device to two or more different pools shared It may become.