Short communication dmert crash resistant file systems

摘要

AbstractDMERT (Duplex, Multi‐Environment, Real Time) is a real‐time operating system that supports reliable telecommunications applications. Although DMERT file systems are based on UNIXTMfile systems, which suffer robustness drawbacks, DMERT file systems do not suffer these drawbacks. The DMERT file manager uses synchronous writes and file system audits to manage crash resistant file systems. The performance penalty for this crash resistance is minimal. This note describes DMERT's crash resistance policy and shows how UNIX and UNIX‐like file systems can be made crash resistant without sacrificing perfor