System and method for managing a non-volatile storage resource as a shared resource in a distributed system

A data storage system has a plurality of hosts that request writes of data to a relatively high-performance storage device (RHPSD) such as NVRAM, which may be one of a plurality of RHPSDs in a plurality of storage nodes. A storage management system receives the write requests and writes received dat...

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Bibliographic Details
Main Authors Smith, Garrett, Garg, Nitin, Mirgorodsky, Alex, Sangili, Vasudevan, Venkitachalam, Ganesh, Patterson, III, R. Hugo
Format Patent
LanguageEnglish
Published 02.10.2018
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:A data storage system has a plurality of hosts that request writes of data to a relatively high-performance storage device (RHPSD) such as NVRAM, which may be one of a plurality of RHPSDs in a plurality of storage nodes. A storage management system receives the write requests and writes received data to the RHPSD. According to an allocation policy, the storage management system indicates to at least one of the hosts that it should limit its use of RHPSD and it then discards data upon indication from that host to do so. Before being discarded from the RHPSD, the data may be written to a persistent storage device.
Bibliography:Application Number: US201615249414