“硬盘驱动器很快就会成为过去。”
“全闪存阵列将很快取代数据中心的磁盘和混合阵列。”
“未来的数据中心是全闪存。”
欢迎来到硬盘灭绝传奇的最新一期。这场辩论(上面列出了亮点)已经持续了十多年。预言硬盘消亡的预言,由一些直言不讳的,容我们说,纯闪存技术的乐观支持者说出来,多年来并没有过时。但随着时间的推移,他们似乎变得越来越厚颜无耻。
毫无疑问,闪存存储非常适合支持需要高性能和速度的应用程序。闪存收入正在增长,全闪存阵列 (AFA) 收入也在增长。但不能以牺牲硬盘驱动器为代价。围绕硬盘驱动器死亡的猜测的前提是存在严重缺陷。
Industry analysts expect hard drives to be the primary beneficiary of continued EB growth. The chart below shows that enterprise and large-scale cloud data centers—where the vast majority of the world’s data sets reside—will be a key location of this growth. In relative terms, hard drive storage is projected to grow by 6,996EB whereas SSDs will grow by 1,363EB between 2022 and 2027.1
AFAs and SSDs are a great fit for high-performance, read-intensive workloads. But it’s a mistake to extrapolate from niche use cases or small-scale deployments to the mass market and hyperscale where AFAs provide an unnecessarily expensive way to do what hard drives already deliver at a much lower TCO.