Dynamic path partitioning to multipath storage devices

A mechanism is provided for balancing I/O among available paths connected to a device. The mechanism partitions paths so a device can use all or only a subset of available paths to a device, depending on the load of I/O for other devices that are sharing the paths. The partitioning of paths is dynam...

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Bibliographische Detailangaben
Hauptverfasser: Allen, James P, Damron, Timothy M, Tee, Stephen M, Tinnakul, Teerasit
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A mechanism is provided for balancing I/O among available paths connected to a device. The mechanism partitions paths so a device can use all or only a subset of available paths to a device, depending on the load of I/O for other devices that are sharing the paths. The partitioning of paths is dynamic, readjusting as I/O loads change for the devices.