Google Inc.

Scott Fredrick Diehl

Kyle Nesbit

A distributed storage system includes memory hosts, a curator, and a cache manager. Each memory host includes remote direct memory accessible non-transitory memory and a network interface controller that is in communication with the memory. The network interface controller services remote direct memory access requests. The curator communicates with the memory hosts, manages striping of a file amongst the memory hosts, and generates a file descriptor for the file that maps the striping of the file to corresponding storage locations on memory hosts. In addition, the cache manager stores copies of file descriptors generated by the curator in the memory of the memory hosts for remote direct memory access by a client in communication with the memory hosts.

Accessing data on distributed storage systems

A distributed cache system including a data storage portion, a data control portion, and a cache logic portion in communication with the data storage and data control portions. The data storage portion includes memory hosts, each having non-transitory memory and a network interface controller in communication with the memory for servicing remote direct memory access requests. The data control portion includes a curator in communication with the memory hosts. The curator manages striping of data across the memory hosts. The cache logic portion executes at least one memory access request to implement a cache operation. In response to each memory access request, the curator provides the cache logic portion a file descriptor mapping data stripes and data stripe replications of a file on the memory hosts for remote direct memory access of the file on the memory hosts through the corresponding network interface controllers.

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Madison, WI, United States of America

Scott Fredrick Diehl