Apparatus and method for reallocating logical to physical disk d

Details Apparatus and method for reallocating logical to physical disk d Apparatus and method for reallocating logical to physical disk d

1997-04-04

1999-09-21

Cabeca, John W.

Electrical computers and digital processing systems: memory

Storage accessing and control

Access timing

711114, 711112, G06F 1200

Patent

active

059567503

ABSTRACT:
A storage controller calculates an access frequency of each logical disk; that it 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 devices to the second and the first physical disk devices, respectively.

REFERENCES:
patent: 5511177 (1996-04-01), Kagimasa et al.
patent: 5537588 (1996-07-01), Engelmann et al.
patent: 5584018 (1996-12-01), Kamiyama
patent: 5737743 (1998-04-01), Ooe et al.
patent: 5774642 (1998-06-01), Flon et al.

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