Storage Technology Corporation

Dean P Kinard

P David Dodd

Ronald L Blickenstaff

Robert J Moreno

Richard L Coulson

Billy D Johnson

A host connected outboard back-up and recovery system has a tape drive connected to a plural port solid-state cache memory which, in turn, is connected to a disk drive. Data to be backed-up can first be copied from the disk drive to the cache and then from the cache to the tape drive in back-up operations, so that the relative speeds of the disk drive and the tape need not be matched. An outboard controller controls flow of the data between the disk drive and the tape drive and additionally controls storage of the data on the tape, so that host computer involvement is avoided.

Outboard back-up and recovery system with transfer of randomly

A method of operation of a memory array for storage of records of differing predetermined sizes is disclosed which features division of the array into domains which are substantially integral multiples of the predetermined record sizes. In a preferred embodiment the domain allocation may be varied adaptively in accordance with usage so as to enable more efficient use of the array.

Adaptive domain partitioning of cache memory space

A method of operation of a memory array for storage of records of differing predetermined sizes is disclosed which features division of the array into domains which are substantially integral multiples of the predetermined record sizes. In a preferred embodiment the domain allocation may be varied adaptively in accordance with usage so as to enable more fully efficient use of the array.

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Longmont, CO, United States of America

Dean P Kinard