Data storage apparatus and method allocating sets of data

Details Data storage apparatus and method allocating sets of data Data storage apparatus and method allocating sets of data

1999-03-09

2000-09-05

Yoo, Do Hyun

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

711100, 711117, 395826, G06F 1200

Patent

active

061157848

ABSTRACT:
A data storage apparatus has a plurality p of storage spaces for storing sets of data. Each of the spaces has: available (unused) space x.sub.1 for storage; a number x.sub.2 of data sets already stored; a number x.sub.3 of channels available for transferring data to the space; and a number x.sub.4 of times the space is scheduled to be used for reading out sets of data therefrom. An allocation factor Qp=f(ai, xi) is calculated for each space where ai are weighting factors ranking xi in order of importance. A data set is allocated to the space having the "best" (e.g. lowest) value of Qp at the time the data is to be allocated. Once allocation factors determined, then data may be allocated according to usage indices representing the ability of a space to store the data at the time of allocation.

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