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DAOS Beyond Persistent Memory: Architecture and Initial Performance Results
DescriptionThe Distributed Asynchronous Object Storage (DAOS) is an open source scale-out storage system that is designed from the ground up to support Storage Class Memory (SCM) and NVMe storage in user space. Until now, the DAOS storage stack has been based on Intel Optane Persistent Memory (PMem) and the Persistent Memory Development Kit (PMDK). With the discontinuation of Optane PMem, and no persistent CXL.mem devices in the market yet, DAOS continues to support PMem-based servers but now also supports server configurations where its Versioning Object Store (VOS) is held in DRAM. In this case, the VOS data structures are persisted through a synchronous Write-Ahead-Log (WAL) combined with asynchronous checkpointing to NVMe SSDs.
This contribution summarizes the recently accepted "DAOS beyond Persistent Memory" IXPUG-ISC23 workshop 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 architecture and reports first performance results.
This contribution summarizes the recently accepted "DAOS beyond Persistent Memory" IXPUG-ISC23 workshop 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 architecture and reports first performance results.
Author/Presenter
Event Type
Workshop
TimeFriday, 17 November 202310:30am - 11am MST
Location405-406-407
Data Movement and Memory
Heterogeneous Computing
I/O and File Systems
W