Method and apparatus for assigning data sets to virtual volumes

Details Method and apparatus for assigning data sets to virtual volumes Method and apparatus for assigning data sets to virtual volumes

1980-02-11

1982-01-12

Springborn, Harvey E.

Boots, shoes, and leggings

G06F 704, G06F 1300

Patent

active

043108830

ABSTRACT:
In a mass storage system having a multiplicity of storage volumes containing addressable data, the assignment of newly received data sets to the best storage volume is accomplished by determining the best match of the data set to the available volumes. Such selection enables maximum storage use of each volume. The best volume is one that provides memory space efficiency for the job at hand, and considers the volume life expectancy, the numbers of users, the shareability of the volume, and the status of the volume. First, all eligible volumes are listed. Then these volumes are sorted according to each volume's match and risk factors to the data set to be stored. The best fitting volumes are selected first for the actual data transfer and storage operation.

REFERENCES:
patent: Re26919 (1970-06-01), Hagelbarger
patent: 3400171 (1968-09-01), Amdahl et al.
patent: 3400372 (1968-09-01), Beausoleil
patent: 3670307 (1972-06-01), Arnold et al.
patent: 3694813 (1972-09-01), Loh et al.
patent: 3831197 (1974-08-01), Beach et al.
"OS/VS2 Scheduler and Supervisor Logic", SY28-0625-0, File No. S370-36, vol. 2 of 3, IBM, Feb. 1974 (in the file).
"Best Fit Algorithm for SQA Storage Management", IBM TDB, vol. 15, No. 1, May 1973, pp. 3638-3639.

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