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Scheduling data relocation activities using configurable fairness criteria
Scheduling data relocation activities using configurable fairness criteria
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机译:使用可配置的公平性标准安排数据重定位活动
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摘要
A storage processor of a data storage system includes a data relocation task scheduler that provides system limit control on the execution of data relocation requests. The data relocation task scheduler also provides fairness and concurrency limit enforcement by scheduling relocation requests from different provisioning domains, such as storage pools, in a fair manner. For example, the data relocation task scheduler includes stackable sets of pending task queues that store incoming data relocation requests. The data relocation task scheduler applies an iteration scheme to remove data relocation requests from the pending task queues thereby providing scheduling fairness among the queues and among the different provisioning domains within the data storage system. The data relocation task scheduler is configured to receive updated policies that control both system-wide data relocation resource consumption and scheduling fairness among the queues during operation and dynamically adjust current policies with the updated policies.
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