SNIA-SDC23-Bjorling-Towards-Large-scale-Deployments-with-Zoned-Namespace-SSDs.pdf

1、Matias Bjrling,Distinguished EngineerTowards Large-scale Deployments with Zoned Namespace SSDs9/20-2023 2023 WESTERN DIGITAL CORPORATION OR ITS AFFILIATES ALL RIGHTS RESERVEDStorage at ScaleHyperscalers and Cloud Service Provides(CSPs)Constantly challenged with large volumes of data and increasing c

2、ustomer demand for cost-effective storage and high performance*Performance:IOPS/TB,Throughput,Latency/QoSTCO Impacts:Capacity vs PerformanceLifetime/DWPD:1DWPDMaintain servers online after the typical 5 years service time*Reduce carbon emissions as well as overall fleet costServer repair costs first

3、 increases significant at year 10 and onwards.Servers are retired prematurelyMicrosoft server fleet lifetime increased from 5 to 7 years*.Meta rapidly increasing its fleet time as well.Now 5 years*.Metrics*TypicalPerformanceIOPS/TB,Throughput,Latency/QoSCost ImpactCapacity/PerformanceLifetime/DWPD5-

4、7 years(Req.1DWPD)*Lee Prewitt,Microsoft-How Facebook&Microsoft Leverage NVMe Cloud Storage.https:/ et.al,Myths and Misconceptions Around Reducing Carbon Embedded in Cloud Platforms,HotCarbon,2023*Rich Miller-Meta Will Run its Servers For Up to 5 Years,2023 https:/ 2023 WESTERN DIGITAL CORPORATION O

5、R ITS AFFILIATES ALL RIGHTS RESERVEDStorage at ScaleHyperscalers and Cloud Service Provides(CSPs)Conventional SSDs not able to serve storage at scaleTypical lifetime 3-5 years.7+years wanted.Either High Cost(TLC)and/or Low DWPD(QLC)Need SSDs that eliminates write amplification to fulfill DWPD,Lifeti

6、me and Performance requirementsSSDs with Zoned Namespace(ZNS)support solve these challengesMetric Conventional SSDSSDs with Zoned Namespace SupportTLCQLCTLC(Performance)QLC(Capacity)IOPS/TB+Throughput+(Read/Write)+(Read)+(Read/Write)+(Read)Latency/QoS+Lifetime+(Typ.1 DWPD)+(Typ.0.3-0.5 DWPD)+(Typ.3.