Dynamic reconfiguration of data storage devices to balance recyc

Details Dynamic reconfiguration of data storage devices to balance recyc Dynamic reconfiguration of data storage devices to balance recyc

1997-01-30

1999-02-23

Chan, Eddie

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

711112, 711173, 707206, G06F 1202

Patent

active

058754814

ABSTRACT:
A data processing system includes a data storage subsystem containing a plurality of data storage devices for reading and writing data on a plurality of data storage volumes. The data processing system is controlled by software to perform a method for recycling the data storage volumes containing a percentage of still valid data and a percentage of invalid data by transferring the still valid data on a plurality of input data storage volumes to one or more output data storage volumes. In accordance with the recycling method, the data processing system assigns a selected number of the data storage devices as input devices and a selected number of the data storage devices as output devices in a predetermined input/output ratio of the form m:k, where m is the number of input devices and k is the number of output devices. The system then commences transferring still valid data from input volumes mounted on the input devices to output volumes mounted on the output devices. As each volume is transferred, the system monitors the data transfer efficiency from the input devices to the output devices and adjusts the input/output ratio based on the measured data transfer efficiency.

REFERENCES:
patent: 4797589 (1989-01-01), Collins
patent: 5179666 (1993-01-01), Rimmer et al.
patent: 5367473 (1994-11-01), Chu et al.
patent: 5430845 (1995-07-01), Rimmer et al.
patent: 5604902 (1997-02-01), Burkes et al.
IBM TDB, vol. 27, No. 4A, Sep. 1984, "Dynamic Multi-Buffering and Asynchronous I/O Performance Enhancements for Data Set Translation", J.A. Aiken, Jr.

Affiliated with

Also associated with

Rating

Dynamic reconfiguration of data storage devices to balance recyc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dynamic reconfiguration of data storage devices to balance recyc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic reconfiguration of data storage devices to balance recyc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-315961