International Business Machines Corporation

Matthew R Lupfer

Steven Michael French

Steven L Pratt

Mingming Cao

Scott R Conor

Ben Chociej

A method uses a record of I/O priorities in a determination of a storage medium of a hybrid storage system in which to store a file. The method maintains the record of I/O priorities by assigning an I/O temperature value to each request for access to the file based upon an I/O priority level of the process making the request. The method marks the file as hot if the file temperature value is greater than a threshold value. The method stores files marked as hot in a lower latency storage medium of the hybrid storage medium.

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Boulder, CO, United States of America

Matthew R Lupfer