SNIA-SDC23-Mills-CXL-Memory-Disaggregation-and-Tiering-Lessons- from-Storage.pdf

1、1|2023 SNIA.All Rights Reserved.Virtual ConferenceSeptember 28-29,2021CXL Memory Disaggregation and TieringLessons Learned from StoragePresented by Andy Mills,SMART Modular Technologies2|2023 SNIA.All Rights Reserved.SummaryMemory tiering can learn a lot from storage Scaling High availability and re

2、dundancy Recovery objectives(RTO/RPO)Stateful vs.Stateless virtualized environmentsTopics covered Quick Refresh on SANs,tiering,CXL memory expansion/sharing Case Study:SSD Transparent Page Tiering a Real World Product Lessons learned that are useful for memory tiering3|2023 SNIA.All Rights Reserved.

3、Background 1980s Multi-parallel processor system design(Transputer),real time embedded signal processing,parallel processor programming1990s Early involvement in 100Mbps optical fiber networks(FDDI),Ethernet networks,SDH/SONET and network redundancy/failover2000s Shared networked storage HA and virt

4、ualized storage appliances supporting tiering,remote replication,snapshot2010s Software defined storage,workload driven dynamic storage allocation and real time server/OS based storage tiering development and deploymentDeveloped production transparent page tiering solution for SSDs for Linux/Windows

5、2020s PCIe Gen 4/5 Advanced SSDs and CXL memory disaggregation architecture and development Now exploring pooled memory add-in components and appliances4|2023 SNIA.All Rights Reserved.Disaggregation and Composability Disaggregation 1993-4 Storage Area Networks(FCSI formed in 1992)first industry stan

6、dards based storage“disaggregation”2013 Intel and Facebook at Open Compute Summit first use the term disaggregation 2017 Intel White Paper:Disaggregated servers drive data center efficiency and innovation-Decouple CPU/DRAM and NIC/Drives from other server components Composability 2020 GPUs start to