A Reliable Non-volatile Memory System: Exploiting File-System Characteristics

2009 ◽  
Author(s):  
Chin-Hsien Wu ◽  
Wen-Yen Chang ◽  
Zen-Wei Hong
Keyword(s):  
File System ◽  
Memory System ◽  
Non Volatile Memory ◽  
Volatile Memory ◽  
System Characteristics

Octopus + : An RDMA-Enabled Distributed Persistent Memory File System

2021 ◽  
Vol 17 (3) ◽  
pp. 1-25
Author(s):  
Bohong Zhu ◽  
Youmin Chen ◽  
Qing Wang ◽  
Youyou Lu ◽  
Jiwu Shu
Keyword(s):  
High Speed ◽  
High Performance ◽  
File System ◽  
Direct Memory Access ◽  
File Systems ◽  
Distributed File Systems ◽  
Persistent Memory ◽  
Memory Modules ◽  
Non Volatile Memory ◽  
Volatile Memory

Non-volatile memory and remote direct memory access (RDMA) provide extremely high performance in storage and network hardware. However, existing distributed file systems strictly isolate file system and network layers, and the heavy layered software designs leave high-speed hardware under-exploited. In this article, we propose an RDMA-enabled distributed persistent memory file system, Octopus + , to redesign file system internal mechanisms by closely coupling non-volatile memory and RDMA features. For data operations, Octopus + directly accesses a shared persistent memory pool to reduce memory copying overhead, and actively fetches and pushes data all in clients to rebalance the load between the server and network. For metadata operations, Octopus + introduces self-identified remote procedure calls for immediate notification between file systems and networking, and an efficient distributed transaction mechanism for consistency. Octopus + is enabled with replication feature to provide better availability. Evaluations on Intel Optane DC Persistent Memory Modules show that Octopus + achieves nearly the raw bandwidth for large I/Os and orders of magnitude better performance than existing distributed file systems.

UMFS: An efficient user-space file system for non-volatile memory

2018 ◽  
Vol 89 ◽  
pp. 18-29 ◽  
Author(s):  
Xianzhang Chen ◽  
Edwin H.-M. Sha ◽  
Qingfeng Zhuge ◽  
Ting Wu ◽  
Weiwen Jiang ◽  
...  
Keyword(s):  
File System ◽  
Non Volatile Memory ◽  
User Space ◽  
Volatile Memory

A Single Chip Station Memory System With Difmos Non-Volatile Memory

1981 ◽  
Vol CE-27 (3) ◽  
pp. 260-271 ◽  
Author(s):  
Hiro Asahi ◽  
John Bryant ◽  
Masa Harada ◽  
Ei. Iwamoto ◽  
Ken Kato ◽  
...  
Keyword(s):  
Memory System ◽  
Single Chip ◽  
Non Volatile Memory ◽  
Volatile Memory
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