Coordination of quality of service in a multi-layer...

Electrical computers and digital data processing systems: input/ – Input/output data processing – Transfer direction selection

Reexamination Certificate

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Details

C710S064000, C710S005000, C710S033000, C709S225000, C709S219000, C709S218000, C709S228000, C709S239000

Reexamination Certificate

active

07636801

ABSTRACT:
A system for coordination for quality of service in multi-layer storage virtualization environments includes a first, second and third storage entity at a respective first, second and third layer of virtualized storage. The first storage entity sends a request for an I/O task to the second storage entity. In response to the request, the second storage entity may be configured to cooperate with the third storage entity to perform one or more I/O operations to satisfy one or more quality of service requirements associated with the I/O task.

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