Integrating a flash cache into large storage systems

An I/O enclosure module is provided with one or more I/O enclosures having a plurality of slots for receiving electronic devices. A host adapter is connected a first slot of the I/O enclosure module and is configured to connect a host to the I/O enclosure. A device adapter is connected to a second s...

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Bibliographische Detailangaben
Hauptverfasser: HAAS ROBERT, SANCHEZ ALFRED EMILIO, HYDE II JOSEPH SMITH, ASH KEVIN JOHN, HSU YUNG, ELEFTHERIOU EVANGELOS, GUPTA LOKESH MOHAN, BENHASE MICHAEL THOMAS, PLETKA ROMAN, HU XIAO-YU
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:An I/O enclosure module is provided with one or more I/O enclosures having a plurality of slots for receiving electronic devices. A host adapter is connected a first slot of the I/O enclosure module and is configured to connect a host to the I/O enclosure. A device adapter is connected to a second slot of the I/O enclosure module and is configured to connect a storage device to the I/O enclosure module. A flash cache is connected to a third slot of the I/O enclosure module and includes a flash-based memory configured to cache data associated with data requests handled through the I/O enclosure module. A primary processor complex manages data requests handled through the I/O enclosure module by communicating with the host adapter, device adapter, and flash cache to manage to the data requests.