Host I/O performance and availability of a storage array during rebuild by prioritizing I/O requests

Host I/O performance and availability of a storage array during rebuild by prioritizing I/O requests

Improved host I/O performance and availability of a storage array during rebuild is obtained by prioritizing I/O requests. In one embodiment, rebuild I/O requests are given priority over host I/O requests when the storage array is close to permanently losing data (for example, failure of one more pa...

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Hauptverfasser: Umberger, David K, Daniels, Rodger D, Belhadj, Mohamed
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Sprache:eng
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creator Umberger, David K
Daniels, Rodger D
Belhadj, Mohamed
description Improved host I/O performance and availability of a storage array during rebuild is obtained by prioritizing I/O requests. In one embodiment, rebuild I/O requests are given priority over host I/O requests when the storage array is close to permanently losing data (for example, failure of one more particular disk in the storage array would result in data loss). Rebuild I/O requests continue to have priority over host I/O requests until the storage array is no longer close to permanently losing data, at which point host I/O requests are given priority over rebuild I/O requests.
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title Host I/O performance and availability of a storage array during rebuild by prioritizing I/O requests
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