V2EX nvdimm

NVDIMM

定义 Definition

NVDIMM 是一种“非易失性双列直插式内存模块”(Non-Volatile Dual In-line Memory Module),外形类似传统 DIMM 内存条,但在断电后仍能保存数据(通过 NAND 闪存、备份电源或持久化介质等实现)。常用于需要断电保护、快速恢复、持久化内存能力的服务器与存储系统。

发音 Pronunciation

/nvidm/

例句 Examples

NVDIMMs keep critical data safe even if the server loses power.
即使服务器断电,NVDIMM 也能把关键数据安全地保存下来。

In this database system, an NVDIMM-backed write-ahead log reduces latency while still providing crash consistency.
在这个数据库系统中,基于 NVDIMM 的预写日志在降低延迟的同时仍能提供崩溃一致性。

词源 Etymology

NVDIMM 是缩写词,由 NV(Non-Volatile,非易失)+ DIMM(Dual In-line Memory Module,双列直插式内存模块)组合而来,用来强调它“像内存一样插在 DIMM 槽上,但具备断电不丢数据的特性”。在行业语境中也常进一步细分为 NVDIMM-N / NVDIMM-F 等类型(表示实现方式不同)。

相关词 Related Words

文学作品/著作 Literary Works

  • JEDEC 标准文档:如与 NVDIMM 相关的规范(行业常引用的标准体系中会定义模块行为与接口要求)。
  • Linux Kernel Documentation:内核关于持久化内存/PMEM、NVDIMM 子系统(如 Documentation/ 下相关条目)中频繁出现该术语。
  • 《Programming Persistent Memory》(面向持久化内存编程的技术书籍):在讨论 PMEM 生态与硬件形态时常提及 NVDIMM。
  • USENIX / ACM 等系统论文:有关持久化内存、崩溃一致性与日志/索引优化的论文中常将 NVDIMM 作为实验或部署硬件背景。
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