Operating System Concepts - Chapter 12: Mass-Storage Systems doc

... redundancy. 12.2 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Jan 1, 2005 Chapter 12: Mass Chapter 12: Mass - - Storage Systems Storage Systems  Overview of Mass Storage Structure  ... Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Jan 1, 2005 C C - - LOOK (Cont.) LOOK (Cont.) 12.40 Silberschatz, Galvin...

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... scheduling 20.10 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Jan 2, 2005 Operating Systems Issues Operating Systems Issues  The operating system must guarantee the specific data ... Operating Requirement of Multimedia Operating Systems Systems  There are three levels of QoS (1) Best-effort service - the system makes a best ef...

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... Request Chapter 13: I/O Systems Chapter 13: I/O Systems 13.21 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Jan 2, 2005 Kernel I/O Subsystem Kernel I/O Subsystem  ... Gagne ©2005 Operating System Concepts – 7 th Edition, Jan 2, 2005 Interrupt Interrupt - - Driven I/O Cycle Driven I/O Cycle 13.37 Silberschatz, Galvin and Gagne ©2005...

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... hardware-generated change-of-flow within the system. An interrupt handler is summoned to deal with the cause of the interrupt; control is then re- 5 Chapter 7 PROCESS SYNCHRONIZATION Chapter 7 ... the matrix Need? Chapter 4 PROCESSES In this chapter we introduce the concepts of a process and concurrent execution; These concepts are at the very heart of modern operating systems....

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... 2005 Environmental Subsystems Environmental Subsystems  User-mode processes layered over the native 2000 executive services to enable 2000 to run programs developed for other operating system  2000 ... and Gagne ©2005 Operating System Concepts – 7 th Edition, Feb 11, 2005 Mirror Set on Two Drives Mirror Set on Two Drives C.12 Silberschatz, Galvin and Gagne ©2005 Operating Syst...

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