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Lecture Operating systems: A concept-based approach: Chapter 13 - Dhananjay M. Dhamdhere

This chapter discusses a programmer’s view of files and the file system. It describes fundamental file organizations, directory structures, operations on files and directories, and file sharing semantics, which specify the manner in which results of file manipulations performed by concurrent processes are visible to one another. Issues that compromise reliability of a file system are discussed. Fault tolerance using atomic actions and recovery using backups are described. Chapter 13 File Systems

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Chapter 13 File Systems Copyright © 2008 Introduction • Overview of File Processing • Files and File Operations • Fundamental File Organizations and Access Methods • Directories • Mounting of File Systems • File Protection • Allocation of Disk Space • Interface Between File System and IOCS Operating Systems, by Dhananjay Dhamdherehamdhere 13.2 2 Copyright © 2008 Introduction (continued) • File Processing • File Sharing Semantics • File System Reliability • Journaling File Systems • Virtual File System • Case Studies of File Systems • Performance of File Systems Operating Systems, by Dhananjay Dhamdherehamdhere 13.3 3 Copyright © 2008 Overview of File Processing Operating Systems, by Dhananjay Dhamdherehamdhere 13.4 4 Copyright © 2008 File System and the IOCS • File system views a file as a collection of data that is owned by a user, shared by a set of authorized users, and reliably stored over an extended period • IOCS views it as a repository of data that is accessed speedily and stored on I/O device that is used efficiently • Two kinds of data: file data and control data Operating Systems, by Dhananjay Dhamdherehamdhere 13.5 5 Copyright © 2008 ... - tailieumienphi.vn
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