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Please pay attention to random failures.
https://mstdn.maud.io/@omasanoriThe new HCI industry record: 13.7 million IOPS with Windows Server 2019 and Intel® Optane™ DC persistent memory | Storage at Microsoft https://blogs.technet.microsoft.com/filecab/2018/10/30/windows-server-2019-and-intel-optane-dc-persistent-memory/
最新のOptane DC + Intel DC NVMe SSD + 25GbE*2構成のノードで組んだクラスタのread-onlyワークロードだと10 million IOPS超えてるらしい