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为什么HDD对于AI经济至关重要?

为什么HDD对于AI经济至关重要?

这种框架很有价值,因为它将AI视为一个完整的工业系统,而非单个模型或一组GPU集群,并清晰地解释了AI是如何生成的。但它也缺失了一个关键的第六层——存储。

能源提供物理基础;芯片将电力转化为算力;基础设施在数据中心规模上将计算变为可运营的系统;模型将算力转化为智能;应用则将智能转化为用户价值¹,²。

这个缺失的层级,充当着AI系统的经验库,它保存着能让智能持久存在、累积并随时间不断优化的数据、输出、上下文和产物——这一切都得益于新的存储层。

AI必须被理解为完整的基础设施

NVIDIA围绕AI工厂的表述很有启发性:其目标不仅是部署加速器,而是在规模化环境中制造智能,并且优化Token生成²,³。这意味着堆栈中的每一层都很重要。电力供应制约部署,芯片制约原始吞吐量,基础设施制约利用率,模型制约智能质量,而应用则制约可商业化的价值。

这种系统视角有助于解释为什么AI日益与电力、电信和云基础设施放在一起讨论。这是一个资本密集型的堆栈,其性能取决于跨多层级的协同,而非仅靠任何单方面的突破¹,⁴。

经济学支撑着AI堆栈

从经济角度看,堆栈的运行方向相反:应用层产生经济价值,为为下层提供资金支持。能源需要花钱,芯片需要花钱,基础设施需要花钱,模型的开发和运营也需要花钱。而应用层才是客户真正为有用成果付费的地方。黄仁勋曾明确指出应用层是经济效益产生的地方⁴。

这种倒置引出了对“五层蛋糕”更有用的经济学解读:电力让AI在物理上维持运行,而应用层让AI在经济上得以持续。

Token生成作为经济产出

NVIDIA近期的AI工厂框架通过将Token吞吐量与经济效益挂钩,进一步强化了这一观点。该公司将Token描述为AI的基本单位,并将每兆瓦的Token吞吐量同AI工厂的收益潜力联系起来²,⁶。

并非所有商业模式都直接按Token收费,但Token生成仍然是一个有用的经济学抽象概念。在代码生成中,Token变成软件;语言模型的Token变成报告或决策;多模态Token变成图像、音乐和视频;工业AI的输出则变成预测、动作或数字孪生⁷。

从这个意义上说,Token生成不仅是一项技术指标,更是AI转化为经济生产力的行为。

为什么存储对Token经济至关重要

如果Token生成是AI经济中的生产行为,那么存储则让这种生产具备持久性。 NVIDIA的AI数据平台资料强调,为企业AI提供动力的数据通常是非结构化的、碎片化的且快速变化的⁸。

AI需要存储至少有五个原因:大型训练语料库、模型检查点、企业检索和智能体工作流、治理与留存需求,以及AI生成产物的保存⁷,⁹,¹⁰。

为了支持Token生成和AI推理,存储内部也在涌现一个新层级:向量数据库。虽然图像、视频或文档等传统对象可能存储在文件系统或对象存储中,但这些内容的语义表示正越来越多地以向量数据的形式存储,帮助AI系统在无需重复处理原始对象的情况下检索、推理和关联上下文。

这一转变正在重塑面向AI的存储架构。计算密集型的AI系统持续推动内存增长,而跨对象和向量存储的AI数据则日益推动闪存和机械硬盘(HDD)基础设施层级的增长。

我们认为,正如IDC的全球数据圈项目所指出的,我们正迎接着一个数据持续扩张的ZB时代——这印证了存储不再只是AI堆栈下方被动的仓库,而是成为使AI系统能够保留上下文并随时间实现经济性扩展的主动基础设施层¹¹。

示意图:物理与经济视角下的五层蛋糕

图1. 同一个五层堆栈,既可以从物理角度自下而上解读,也可以从经济角度自上而下解读。

闪存助力AI快速思考——

HDD确保AI实现大规模记忆

AI毋庸置疑需要快速运行的存储层级。内存、NVMe和基于固态硬盘(SSD)的存储对于大规模训练中的低延迟推理、主动检索和检查点性能至关重要⁸,⁹。

但AI的经济性不仅仅由最热的数据决定。它由必须长期保留、回溯、治理或复用的全部数据存量决定。公有云的操作指南仍然根据工作负载和成本特征区分SSD和HDD层级;AWS将冷存储的HDD描述为适用于不经常访问数据的最低成本块存储选项¹²。

随着数据生成、采集和复制的体量持续膨胀,关键问题不再仅仅是“我们如何算得足够快?”,还在于“我们如何以足够低的成本、在足够长的时间里、记住足够多的数据¹¹?”

Token经济并不会在Token生成时就结束。在许多情况下,它的价值从那一刻才开始。有用的输出通常需要被存储、引用、审计、转换、后续检索,或作为未来的上下文和训练材料重复使用。

这对于企业资料库、软件应用、检查点、日志、合成数据、媒体资产、科学输出、工业遥测和数字孪生都是如此⁸,⁹,¹⁰。

内存和SSD使AI系统能够以高速思考和响应。HDD则让AI生成的价值以经济的方式实现大规模持久保存。

HDD之所以重要,并非因为它要取代闪存,而是因为它与闪存互补。闪存加速活跃的AI工作负载,而HDD则提供了持久且经济可扩展的基础,用以对日益增长的AI生成数据及AI相关数据存量进行持续的再训练。

结论

黄仁勋的“五层蛋糕”理论是一个有用的模型,因为它将AI视为一个完整的基础设施系统,而非单一的技术浪潮¹。 但随着AI系统不断扩展并产生经济价值,这一模型越来越需要一个关键要素:存储。

AI基础设施不再仅由算力性能来定义,而是越来越取决于系统如何能够高效地长期保留、管理和扩展日益增长的AI数据体量。

正是这一转变,使存储成为AI基础设施未来的基石——也说明了为何HDD对AI经济依然不可或缺。

参考文献:

1. NVIDIA Blog. “AI Is a 5-Layer Cake.” March 10, 2026. https://blogs.nvidia.com/blog/ai-5-layer-cake/

2. NVIDIA. “AI Factories.” Accessed April 1, 2026. https://www.nvidia.com/en-us/solutions/ai-factories/

3. NVIDIA Glossary. “What Is an AI Factory?” Accessed April 1, 2026. https://www.nvidia.com/en-us/glossary/ai-factory/

4. NVIDIA Blog. “Largest Infrastructure Buildout in Human History: Jensen Huang on AI, Energy, and Industry at Davos.” January 2026. https://blogs.nvidia.com/blog/davos-wef-blackrock-ceo-larry-fink-jensen-huang/

5. EPRI. “Powering Intelligence 2026: Executive Summary.” 2026. https://powering-intelligence.epri.com/executive-summary.html

6. NVIDIA Developer Blog. “Scaling Token Factory Revenue and AI Efficiency by Maximizing Performance per Watt.” March 2026. https://developer.nvidia.com/blog/scaling-token-factory-revenue-and-ai-efficiency-by-maximizing-performance-per-watt/

7. U.S. Government Accountability Office. “Generative Artificial Intelligence: Uses, Benefits, and Risks.” 2024. https://www.gao.gov/products/gao-24-106946

8. NVIDIA. “AI Data Platform for Enterprise.” Accessed April 1, 2026. https://www.nvidia.com/en-us/data-center/ai-data-platform/

9. AWS Storage Blog. “Architecting Scalable Checkpoint Storage for Large-Scale ML Training on AWS.” June 16, 2025. https://aws.amazon.com/blogs/storage/architecting-scalable-checkpoint-storage-for-large-scale-ml-training-on-aws/

10. Google Cloud. “Cloud Storage Controls for Generative AI Use Cases.” 2026. https://docs.cloud.google.com/docs/security/security-best-practices-genai/storage-controls

11. IDC. “Global DataSphere.” Accessed April 1, 2026. https://my.idc.com/getdoc.jsp?containerId=IDC_P38353

12. AWS. “Amazon EBS Cold HDD Volumes.” Accessed April 1, 2026. https://aws.amazon.com/ebs/cold-hdd/

(转载自公众号:西部数据WD)

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  1. CONNECT:[ UseTime:0.001049s ] mysql:host=127.0.0.1;port=3306;dbname=wenku;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001611s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.006233s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000648s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001498s ]
  6. SELECT * FROM `set` [ RunTime:0.000502s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001151s ]
  8. SELECT * FROM `article` WHERE `id` = 853264 LIMIT 1 [ RunTime:0.002405s ]
  9. UPDATE `article` SET `lasttime` = 1784733752 WHERE `id` = 853264 [ RunTime:0.047666s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.008571s ]
  11. SELECT * FROM `article` WHERE `id` < 853264 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001132s ]
  12. SELECT * FROM `article` WHERE `id` > 853264 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000933s ]
  13. SELECT * FROM `article` WHERE `id` < 853264 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.003215s ]
  14. SELECT * FROM `article` WHERE `id` < 853264 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.017365s ]
  15. SELECT * FROM `article` WHERE `id` < 853264 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.015188s ]
0.258843s