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LOCATION:405-406-407
DTSTART;TZID=America/Denver:20231117T103000
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UID:submissions.supercomputing.org_SC23_sess462_ws_hmem101@linklings.com
SUMMARY:DAOS Beyond Persistent Memory:  Architecture and Initial Performan
 ce Results
DESCRIPTION:Michael Hennecke (Intel Corporation)\n\nThe Distributed Asynch
 ronous Object Storage (DAOS) is an open source scale-out storage system th
 at is designed from the ground up to support Storage Class Memory (SCM) an
 d NVMe storage in user space. Until now, the DAOS storage stack has been b
 ased on Intel Optane Persistent Memory (PMem) and the Persistent Memory De
 velopment Kit (PMDK). With the discontinuation of Optane PMem, and no pers
 istent CXL.mem devices in the market yet, DAOS continues to support PMem-b
 ased servers but now also supports server configurations where its Version
 ing Object Store (VOS) is held in DRAM. In this case, the VOS data structu
 res are persisted through a synchronous Write-Ahead-Log (WAL) combined wit
 h asynchronous checkpointing to NVMe SSDs. \n\nThis contribution summarize
 s the recently accepted "DAOS beyond Persistent Memory" IXPUG-ISC23 worksh
 op paper (M. Hennecke et al., https://doi.org/10.1007/978-3-031-40843-4_26
 ; not live yet, see PDF upload), which describes the new non-PMem DAOS arc
 hitecture and reports first performance results.\n\nTag: Data Movement and
  Memory, Fault Handling and Tolerance, Hardware Technologies, Heterogeneou
 s Computing, I/O and File Systems, Performance Measurement, Modeling, and 
 Tools, Programming Frameworks and System Software, Security\n\nRegistratio
 n Category: Workshop Reg Pass\n\nSession Chairs: João Barreto (INESC-ID, I
 ST, University of Lisbon; Universidade de Lisboa); Hatem ElShazly (Sony); 
 Antonio J. Peña (Barcelona Supercomputing Center (BSC); Universitat Politè
 cnica de Catalunya (UPC), Spain); and Harald Servat (Intel Corporation)\n\
 n
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