Parity allocation for a virtual redundant array of independent disks

Allocation of parity data storage extents for a virtual RAID is disclosed. A virtual RAID can be enabled by a virtual storage device pool (VSDP) mapped to a physical storage device pool (PSDP) that can comprise physical extents of physical disks. In an aspect, the physical disks can be co-located, remotely located, or combinations thereof. Mapping of the VSDP can enable allocation of virtual extents in a virtual RAID that can, for example, emulate a RAID4 while still providing parity data storage diversity that can, for example, emulate RAID5, RAID6, etc. Moreover, the disclosed subject matter can support proactive wear leveling, for example, based on historical storage of parity data via an extent, e.g., extents previously used to store parity data. Furthermore, the disclosed subject matter can support active wear leveling.