Controlling preemptive work balancing in data storage

Details Controlling preemptive work balancing in data storage Controlling preemptive work balancing in data storage

2011-04-19

2011-04-19

Rutz, Jared I (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S170000

Reexamination Certificate

active

07930505

ABSTRACT:
A storage network control apparatus is operable to present virtualized storage to a host system and includes a monitoring component, an analysis component, a detection component, and a migration component. The monitoring component is for monitoring input/output (I/O) activity for virtual storage logical units over time. The analysis component is 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. The detecting component is for identifying an instance of such a predictive signature. The migration component is responsive to the detecting component, and is for migrating data mapped by the virtual storage logical unit across additional real storage units to improve the I/O performance of the 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.

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EP Search Report, EP Application No. 05107122.3, dated Jun. 20, 2006.

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