Never mind networking: Using shared non volatile memory in scale out software

Page 1. © Copyright 2014 Hewlett-Packard Development Company, LP The information contained herein is subject to change without notice. NeVer Mind networking: Using shared non- volatile memory in scale-out software Stanko Novakovic , Paolo Faraboschi, Kimberly Keeton, Rob Schreiber, Edouard Bugnion, Babak Falsafi * EPFL, Switzerland HP Labs, USA * * * Page 2. © Copyright 2014 Hewlett-Packard Development Company, LP The information contained herein is subject to change without notice. HP CONFIDENTIAL 2 Multiple non-volatile memory technologies Magnetic disk • Block-based storage, access via programmed IO or DMA (eg ATA) Flash (PCIe-attached – via NVMe) • Block-based storage, access via queue-pairs (ie SQ, CQ) and DMA Non-volatile Random Access Memory (NVRAM) • Persistent with similar performance characteristics to DRAM • Byte-addressable, direct access via LD/ST …