This paper introduces a novel disk array architecture, designated RAID-0e (Resilient Striping Array), designed to superimpose a low-overhead fault tolerance layer upon traditional RAID 0 (striping). By employing a logically and physically separate parity domain to protect a primary data domain, RAID-0e mitigates the risk of array-wide data loss from common, non-catastrophic media failures, such as isolated bad blocks, transient read errors, or sector-level corruption. The architecture is engineered to preserve the intrinsic read performance advantages of RAID 0 while significantly enhancing data availability and operational resilience. This document provides a comprehensive exposition of the architectural principles, operational workflows, performance characteristics, failure mode analysis, and security considerations of RAID-0e. It is presented as an experimental yet pragmatic solution for environments seeking a new equilibrium between I/O performance, storage cost, and data resilience, particularly where full drive failure is a secondary concern to media degradation.
翻译:本文介绍了一种新颖的磁盘阵列架构,命名为RAID-0e(弹性条带化阵列),其设计旨在传统RAID 0(条带化)之上叠加一个低开销的容错层。通过采用逻辑和物理上独立的奇偶校验域来保护主数据域,RAID-0e减轻了由常见非灾难性介质故障(如孤立坏块、瞬时读取错误或扇区级损坏)导致阵列范围数据丢失的风险。该架构旨在保留RAID 0固有的读取性能优势,同时显著提升数据可用性和运行弹性。本文对RAID-0e的架构原理、操作流程、性能特征、故障模式分析及安全考量进行了全面阐述。它作为一种实验性且务实的解决方案,适用于那些在I/O性能、存储成本与数据弹性之间寻求新平衡的环境,尤其是在介质退化问题比整盘故障更受关切的场景中。