File System Scalability with Highly Decentralized Metadata on Independent Storage Devices

2016 ◽  
Author(s):  
Paul Hermann Lensing ◽  
Toni Cortes ◽  
Jim Hughes ◽  
Andre Brinkmann
Keyword(s):  
File System ◽  
Storage Devices

Performance Analysis of Lustre File System using High Performance Storage Devices

2016 ◽  
Vol 22 (4) ◽  
pp. 163-169 ◽  
Author(s):  
Jaehwan Lee ◽  
Donghun Koo ◽  
Kyungmin Park ◽  
Jiksoo Kim ◽  
Soonwook Hwang
Keyword(s):  
Performance Analysis ◽  
High Performance ◽  
File System ◽  
Storage Devices

A trusted versioning file system for passive mobile storage devices

2014 ◽  
Vol 38 ◽  
pp. 65-75 ◽  
Author(s):  
Luigi Catuogno ◽  
Hans Löhr ◽  
Marcel Winandy ◽  
Ahmad-Reza Sadeghi
Keyword(s):  
File System ◽  
Storage Devices

NVMM-Oriented Hierarchical Persistent Client Caching for Lustre

2021 ◽  
Vol 17 (1) ◽  
pp. 1-22
Author(s):  
Wen Cheng ◽  
Chunyan Li ◽  
Lingfang Zeng ◽  
Yingjin Qian ◽  
Xi Li ◽  
...  
Keyword(s):  
High Performance ◽  
File System ◽  
File Systems ◽  
Main Memory ◽  
Full Potential ◽  
Storage Devices ◽  
Hierarchical Storage ◽  
Client Cache ◽  
Client Side ◽  
Performance Computing

In high-performance computing (HPC), data and metadata are stored on special server nodes and client applications access the servers’ data and metadata through a network, which induces network latencies and resource contention. These server nodes are typically equipped with (slow) magnetic disks, while the client nodes store temporary data on fast SSDs or even on non-volatile main memory (NVMM). Therefore, the full potential of parallel file systems can only be reached if fast client side storage devices are included into the overall storage architecture. In this article, we propose an NVMM-based hierarchical persistent client cache for the Lustre file system (NVMM-LPCC for short). NVMM-LPCC implements two caching modes: a read and write mode (RW-NVMM-LPCC for short) and a read only mode (RO-NVMM-LPCC for short). NVMM-LPCC integrates with the Lustre Hierarchical Storage Management (HSM) solution and the Lustre layout lock mechanism to provide consistent persistent caching services for I/O applications running on client nodes, meanwhile maintaining a global unified namespace of the entire Lustre file system. The evaluation results presented in this article show that NVMM-LPCC can increase the average read throughput by up to 35.80 times and the average write throughput by up to 9.83 times compared with the native Lustre system, while providing excellent scalability.

scholarly journals INFUSE: Invisible plausibly-deniable file system for NAND flash

2020 ◽  
Vol 2020 (4) ◽  
pp. 239-254
Author(s):  
Chen Chen ◽  
Anrin Chakraborti ◽  
Radu Sion
Keyword(s):  
File System ◽  
Nand Flash ◽  
Data Loss ◽  
Storage Medium ◽  
Sensitive Data ◽  
Storage Devices ◽  
Public Data ◽  
Hide Data ◽  
Hidden Data ◽  
Local Storage

AbstractProtecting sensitive data stored on local storage devices e.g., laptops, tablets etc. is essential for privacy. When adversaries are powerful enough to coerce users to reveal encryption keys/passwords, encryption alone becomes insufficient for data protection. Additional mechanisms are required to hide the very presence of sensitive data.Plausibly deniable storage systems (PDS) are designed to defend against such powerful adversaries. Plausible deniability allows a user to deny the existence of certain stored data even when an adversary has access to the storage medium. However, existing plausible deniability solutions leave users at the mercy of adversaries suspicious of their very use. Indeed, it may be difficult to justify the use of a plausible deniability system while claiming that no sensitive data is being hidden.This work introduces INFUSE, a plausibly-deniable file system that hides not only contents but also the evidence that a particular system is being used to hide data. INFUSE is “invisible” (identical layout with standard file system), provides redundancy, handles overwrites, survives data loss, and is secure in the presence of multi-snapshot adversaries. INFUSE is efficient. Public data operations are orders of magnitude faster than existing multi-snapshot resilient PD systems, and only 15% slower than a standard non-PD baseline, and hidden data operations perform comparably to existing systems.

A User-Level File System for Fast Storage Devices

2014 ◽  
Author(s):  
Yongseok Son ◽  
Nae Young Song ◽  
Hyuck Han ◽  
Hyeonsang Eom ◽  
Heon Young Yeom
Keyword(s):  
File System ◽  
Storage Devices
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