Storage space allocation for logical disk creation

摘要

The present disclosure includes apparatus, systems, computer readable storage media and techniques relating to virtualization of data storage space. In some implementations, a system includes storage devices, wherein each of the storage devices includes contiguous portions; and a data storage controller configured to assign a priority value to each of available ones of the contiguous portions of the respective storage devices, based on weighted criteria, and choose a subset of the available ones of the contiguous portions of the respective storage devices, in accordance with the assigned priority values, to form a logical disk; wherein the logical disk includes at least one available portion from each of two or more of the storage devices.

主权项

1. A system comprising:
storage devices, wherein each of the storage devices includes contiguous portions; and a data storage controller configured to assign a priority value to each of available ones of the contiguous portions of the respective storage devices, based on weighted criteria, and choose a subset of the available ones of the contiguous portions of the respective storage devices, in accordance with the assigned priority values, to form a logical disk; wherein the logical disk includes at least one available portion from each of two or more of the storage devices; and wherein the weighted criteria comprise a storage device performance parameter and a ratio of a number of free portions to a total number of portions for a storage device.