Apparatus and method for reallocating logical to physical...

Electrical computers and digital processing systems: memory – Address formation – Address mapping

Reexamination Certificate

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C711S114000, C711SE12002

Reexamination Certificate

active

08032733

ABSTRACT:
A storage controller calculates an access frequency of each logical disk; that is selects a first logical disk device of which the access frequency exceeds a first predetermined value, the first logical disk device being allocated to a first physical disk device; selects a second logical disk device which has the access frequency equal to or less than a second predetermined value, the second logical disk device being allocated to a second physical disk device; and reallocates the first and second logical device; and reallocates the first and second logical devices to the second and the first physical disk device, respectively.

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