PPT-Mass Storage Structure: Disk Scheduling

CSSE 332 Operating Systems RoseHulman Institute of Technology Disk blocks on disk surface Disk performance parameters To read or write the disk head must be positioned at the desired track and at the beginning of the desired sector. June 2015. 1. As organizations grow the amount of data storage capacity required to support it grows as well. Increased data retention requirements. Increased headcount. New applications. Adding on to an existing storage network should have minimal impact on the end user. 1. Readings. Chapter . 10. 2. Long-term Information Storage. Three essential requirements:. Must store large amounts of data. Information stored must survive the termination of the process using it (. Hard disks. Magnetic disks. Magnetic disks provide bulk of secondary storage of modern computers. Drives rotate at 60 to 200 times per second. Transfer rate. is rate at which data flow between drive and computer. Denny Cherry. mrdenny@mrdenny.com. twitter.com/. mrdenny. About Me. Author or Coauthor of 4 books. 6+ SQL Mag articles. Dozens of other articles. Microsoft MVP since Oct 2008. Microsoft Certified Master. CS 3100 Mass Storage Systems. 1. Magnetic disks provide bulk of secondary storage of modern computers. Drives rotate at 60 to 200 times per second. Transfer rate. is rate at which data flow between drive and computer. HTM304. William Sullivan. Victor Cortez. Wendi Jardin. Jonathan Thompson. Storage. Purpose:. Without storage a computer can only function as a digital signal processing device (e.g. calculator, media player).. CSSE 332. Operating Systems. Rose-Hulman Institute of Technology. Disk blocks on disk surface. Disk performance parameters. To read or write, the disk head must be positioned at the desired track and at the beginning of the desired sector. Term. Abbreviation. Approximate Memory Size. Kilobyte. KB or K. =1000 bytes (actual size is 1024 bytes). Megabyte. MB. =1 million bytes. Gigabyte. GB. =1 billion bytes. Terabyte. TB. =1 trillion bytes. List Capacities. Describe Hard Disk Characteristics. Explain Cloud Storage Advantages. Differentiate Between CDs & DVDs. Explain Miniature Storage Use. Identify the Uses for Tape. Storage. Holds Data, Instructions, & Information. BYU CS 345. Disc Scheduling. 2. CS 345. Stalling’s Chapter. #. Project. 1: Computer System Overview. 2: Operating System Overview. 4. P1:. Shell. 3: Process Description and Control. 4: Threads. 4. Objectives. Skills/Concepts. Objective Domain Description. Objective Domain Number. Identifying Storage Technologies. Identify storage technologies. 4.1. Introducing. Redundant Arrays of Independent Disks. 16.1 Introduction. Databases typically stored on magnetic disks. Accessed using physical database file structures. Storage hierarchy. Primary storage. CPU main memory, cache memory. Secondary storage. Ondrej . Žilinec. GOPAS: . info@gopas,sk. . |. www.gopas.sk. . |. www.facebook.com/GOPASSR. Obsah. Novodobé trendy. Storage Spaces. SMB 3.0. SMB Direct. Scale-out file server. ReFS. Online backup. Chapter 11: Mass-Storage Systems. Overview of Mass Storage Structure. HDD Scheduling. NVM Scheduling. Error Detection and Correction. Storage Device Management. Swap-Space Management. Storage Attachment.