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#134: Best Practices for OpenZFS L2ARC in the Era of NVMe
Manage episode 273931201 series 1393477
内容由SNIA Technical Council提供。所有播客内容(包括剧集、图形和播客描述)均由 SNIA Technical Council 或其播客平台合作伙伴直接上传和提供。如果您认为有人在未经您许可的情况下使用您的受版权保护的作品,您可以按照此处概述的流程进行操作https://zh.player.fm/legal。
The ZFS L2ARC is now more than 10 years old. Over that time, a lot of secret incantations and tribal knowledge have been created by users, testers, developers, and the odd sales or marketing person. That collection of community wisdom informs the use and/or tuning of ZFS L2ARC for certain IO profiles, dataset sizes, server class, share protocols, and device types. In this talk, we will review a case study in which we tested a few of these L2ARC myths on an NVMe-capable OpenZFS storage appliance. Can high-speed NVMe flash devices keep L2ARC relevant in the face of ever-increasing memory capacity for ARC (primary cache) and all-flash storage pools? Learning Objectives: 1) Overview of ZFS L2ARC design goals and high level implementation details that pertain to our findings; 2) Performance characteristics of L2ARC during warming and when warmed, plus any tradeoffs or pitfalls with L2ARC in these states; 3) How to leverage NVMe as L2ARC devices to improve performance in a few storage use cases.
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146集单集
Manage episode 273931201 series 1393477
内容由SNIA Technical Council提供。所有播客内容(包括剧集、图形和播客描述)均由 SNIA Technical Council 或其播客平台合作伙伴直接上传和提供。如果您认为有人在未经您许可的情况下使用您的受版权保护的作品,您可以按照此处概述的流程进行操作https://zh.player.fm/legal。
The ZFS L2ARC is now more than 10 years old. Over that time, a lot of secret incantations and tribal knowledge have been created by users, testers, developers, and the odd sales or marketing person. That collection of community wisdom informs the use and/or tuning of ZFS L2ARC for certain IO profiles, dataset sizes, server class, share protocols, and device types. In this talk, we will review a case study in which we tested a few of these L2ARC myths on an NVMe-capable OpenZFS storage appliance. Can high-speed NVMe flash devices keep L2ARC relevant in the face of ever-increasing memory capacity for ARC (primary cache) and all-flash storage pools? Learning Objectives: 1) Overview of ZFS L2ARC design goals and high level implementation details that pertain to our findings; 2) Performance characteristics of L2ARC during warming and when warmed, plus any tradeoffs or pitfalls with L2ARC in these states; 3) How to leverage NVMe as L2ARC devices to improve performance in a few storage use cases.
…
continue reading
146集单集
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