高效大容量储能冷却创新.pdf

1、AI Driven Mass Storage AI Driven Mass Storage Interface UpgradeInterface UpgradeSeagateAI Driven Mass Storage Interface UpgradeMohamad El-BatalTechnologist/Seagate OCTOSTORAGEHigh Density HDD Storage Main Pain Points Acoustic noise contamination in high-density HDD storage enclosures during max envi

2、ronmental temperatures&fan-fail conditions causes significant increase in fan-RPM,which translates into near fan higher track errors&higher AFR Reducing fans RPM to reduce errors and save fan-power OPEX leads to lower-density chassis or higher and less-uniform HDD temperatures,which negatively impac

3、ts AFR and TCO Future heads&media with higher HDD areal and track densities will be even more susceptible to acoustic noise contamination and extreme temperature impact on AFRAir-Cooled High-Density Storage Pros&ConsProsConsSimple traditional designs work for Enterprise or OCP cold/hot aislesHDDs cl

4、oser to the fans experience damaging acoustic noiseReasonable Ashre Ambient-Temp cooling infrastructure Uneven HDD temperature distribution across high-density chassis19”or 21”Vertical Rack support with low-cost sheet-metal chassisCompute nodes are way hotter than storage exist in common racksFlexib

5、le CRU/FRU easy hot/cold-swap service supportCo-located higher power controller CRUs are always a challengeAt 10W per drive low-pressure/low-velocity airflow is manageableHigh-Density chassis added fan power consumption is significantOCP AirflowEnterprise AirflowImmersion Cooled High-Density Storage

6、 Pros&ConsProsConsNo acoustic noise to cause drive errorsHDD and Controller CRUs/FRUs are much harder to serviceSuperior HDD temperature distribution and better AFRSome negative impact on some electronics,contacts and labelsHigher power storage controllers can be easily accommodatedRequires storage