Controlling preemptive work balancing in data storage

摘要

A storage network control apparatus is operable to present virtualized storage to a host system and comprises a monitoring component for monitoring I/O activity for virtual storage logical units over time; an analysis component for identifying a repeating instance of peak I/O activity for a virtual storage logical unit over time and for generating a predictive signature therefrom; a detecting component for identifying an instance of such a predictive signature; and responsive to the detecting component, a migration component for migrating data mapped by the virtual storage logical unit across additional real storage units to improve the I/O performance of said virtual storage logical unit prior to a recurrence of the repeating instance of peak I/O activity. A corresponding logic arrangement may be incorporated in hardware, software or a combination thereof.