Apparatus and method to provide power to a plurality of data storage devices disposed in a data storage system
AssigneeInternational Business Machines Corporation
InventorsRobert Kubo, Gregg Lucas, Tohru Sumiyoshi, Yoshihiko Terashita
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Abstract
A method is disclosed to provide power to a plurality of data storage devices disposed in a data storage system. The data storage system comprises a system controller comprising a data storage device power-up algorithm and a plurality of data storage devices, where each of the plurality of data storage devices cannot automatically provide a device present signal. The method detects the presence of each of the plurality of data storage devices, and then provides power to each of the detected data storage devices using the data storage device power-up algorithm.
Claims20
A method to provide power to a plurality of data storage devices disposed in a data storage system, comprising the steps of:
- providing a data storage system comprising a system controller comprising a data storage device power-up algorithm, a plurality of local controllers, and a plurality of data storage devices, wherein each of the plurality of data storage devices cannot automatically provide a device present signal;
- detecting the presence of each of said plurality of plurality of data storage devices;
- providing power to each of said plurality of data storage devices using said data storage device power-up algorithm.
An article of manufacture comprising a computer useable medium having computer readable program code disposed therein to provide power to a plurality of data storage devices disposed in a data storage system comprising a system controller comprising a data storage device power-up algorithm, a plurality of local controllers, and a plurality of data storage devices, wherein each of said plurality of data storage devices cannot automatically provide a device present signal, the computer readable program code comprising a series of computer readable program steps to effect:
- detecting the presence of each of said plurality of plurality of data storage devices;
- providing power to each of said plurality of data storage devices using said data storage device power-up algorithm.
A computer program product usable with a programmable computer processor having computer readable program code embodied therein to provide power to a plurality of data storage devices disposed in a data storage system comprising a system controller comprising a data storage device power-up algorithm, a plurality of local controllers, and a plurality of data storage devices, wherein each of said plurality of data storage devices cannot automatically provide a device present signal, comprising:
- computer readable program code which causes said programmable computer processor to detect the presence of each of said plurality of plurality of data storage devices;
- computer readable program code which causes said programmable computer processor to provide power to each of said plurality of data storage devices using said data storage device power-up algorithm.
Dependencies are inferred from the claim text.