SYSTEMS AND METHODS FOR ENABLING LOCAL CACHING FOR REMOTE STORAGE DEVICES OVER A NETWORK VIA NVME CONTROLLER
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United States of America Patent
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app pub date -
Nov 13, 2015
filing date -
May 2, 2014
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Abandoned
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Abstract
A new approach is proposed that contemplates systems and methods to support mapping/importing remote storage devices as NVMe namespace(s) via an NVMe controller using a storage network protocol and utilizing one or more storage devices locally coupled to the NVMe controller as caches for fast access to the mapped remote storage devices. The NVMe controller exports and presents the NVMe namespace(s) of the remote storage devices to one or more VMs running on a host attached to the NVMe controller. Each of the VMs running on the host can then perform read/write operations on the logical volumes. During a write operation, data to be written to the remote storage devices by the VMs is stored in the locally coupled storage devices first before being transmitted over the network. The locally coupled storage devices may also cache data intelligently pre-fetched from the remote storage devices based on reading patterns and/or pre-configured policies of the VMs in anticipation of read operations.
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