'Log structured file systems' diaporamas de présentation

Outline for Today

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File System

File System. Long-term Information Storage. Must store large amounts of data Information stored must survive the termination of the process using it Multiple processes must be able to access the information concurrently. File Structure. Three kinds of files byte sequence record sequence

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Chapter 11 Implementing File-Systems

Chapter 11 Implementing File-Systems. Chapter 11: Implementing File Systems . File-System Structure File-System Implementation Directory Implementation Allocation Methods Free-Space Management Efficiency and Performance Recovery Log-Structured File Systems NFS

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Chapter 11: File System Implementation

Chapter 11: File System Implementation. Chapter 11: File System Implementation. File System Structure File System Implementation Directory Implementation Allocation Methods Free-Space Management Efficiency and Performance Recovery Log-Structured File Systems. File-System Structure.

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Lecture 19 Ch 11: File System Implementation Ch. 12: Mass Storage Structure

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Advanced Operating Systems

Advanced Operating Systems. V. Prof. Muhammad Saeed. File Systems-II. Managing free space: bit vector. Keep a bit vector, with one entry per file block Number bits from 0 through n-1, where n is the number of file blocks on the disk If bit[j] == 0, block j is free

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