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Advanced Database Systems

Advanced Database Systems

Advanced Database Systems. DBMS Architectures & Index Structure Hussam A. Halim Computer Science Department 2011. Exam-6-3-2011. Outline. Data organizations for secondary storage storage structures indexing structures Types of Single-level Ordered Indexes Primary Indexes

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1.5k views • 128 slides
Chapter 11: Storage and File Structure

Chapter 11: Storage and File Structure

Chapter 11: Storage and File Structure. Chapter 11: Storage and File Structure. Overview of Physical Storage Media Magnetic Disks RAID Tertiary Storage Storage Access File Organization Organization of Records in Files Data-Dictionary Storage

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1.14k views • 96 slides
Chapter 11: Storage and File Structure

Chapter 11: Storage and File Structure

Chapter 11: Storage and File Structure. Overview of Physical Storage Media Magnetic Disks RAID Tertiary Storage Storage Access File Organization Organization of Records in Files Data-Dictionary Storage Storage Structures for Object-Oriented Databases.

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1.24k views • 90 slides
Chapter 11: Storage and File Structure

Chapter 11: Storage and File Structure

Chapter 11: Storage and File Structure. Overview of Physical Storage Media Magnetic Disks RAID Tertiary Storage Storage Access File Organization Organization of Records in Files Data-Dictionary Storage Storage Structures for Object-Oriented Databases. 3. DATA STORAGE AND INDEXING 9

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1.37k views • 76 slides
Secondary Storage Devices: Magnetic Disks Optical Disks Floppy Disks Magnetic Tapes

Secondary Storage Devices: Magnetic Disks Optical Disks Floppy Disks Magnetic Tapes

Secondary Storage Devices: Magnetic Disks Optical Disks Floppy Disks Magnetic Tapes. Secondary Storage Devices. Two major types of secondary storage devices: Direct Access Storage Devices (DASDs)

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1.94k views • 74 slides
Chapter 11: Storage and File Structure

Chapter 11: Storage and File Structure

Chapter 11: Storage and File Structure. Overview of Physical Storage Media Magnetic Disks RAID Tertiary Storage Storage Access File Organization Organization of Records in Files Data-Dictionary Storage Storage Structures for Object-Oriented Databases.

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909 views • 68 slides
Chapter 10: Storage and File Structure

Chapter 10: Storage and File Structure

Chapter 10: Storage and File Structure. Chapter 10: Storage and File Structure. Overview of Physical Storage Media Magnetic Disks RAID Tertiary Storage Storage Access File Organization Organization of Records in Files Data-Dictionary Storage. Classification of Physical Storage Media.

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867 views • 59 slides
Operating Systems

Operating Systems

Operating Systems. Operating Systems. Unit 9: Disk Performance Optimization File Systems. Introduction. Secondary storage is common bottleneck Improvements in secondary storage performance significantly boost overall system performance Physical aspects moving head disk storage

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802 views • 56 slides
Ch 11: Storage and File Structure

Ch 11: Storage and File Structure

Ch 11: Storage and File Structure. Overview of Physical Storage Media Magnetic Disks RAID Tertiary Storage Storage Access File Organization Organization of Records in Files Data-Dictionary Storage. Classification of Physical Storage Media. Criteria:

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750 views • 55 slides
Implementation of File Systems

Implementation of File Systems

Implementation of File Systems. CS-4513 Distributed Computing Systems

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518 views • 51 slides
Operating Systems

Operating Systems

Operating Systems. Operating Systems. Session 9: Disk Performance Optimization File Systems. Introduction. Secondary storage is common bottleneck Improvements in secondary storage performance significantly boost overall system performance Physical aspects moving head disk storage

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647 views • 51 slides
Chapter 11: Storage and File Structure

Chapter 11: Storage and File Structure

Chapter 11: Storage and File Structure. Chapter 11: Storage and File Structure. Overview of Physical Storage Media Magnetic Disks RAID Tertiary Storage Storage Access File Organization Organization of Records in Files Data-Dictionary Storage. Classification of Physical Storage Media.

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655 views • 47 slides
Chapter 14: Mass-Storage Systems

Chapter 14: Mass-Storage Systems

Chapter 14: Mass-Storage Systems. Disk Structure Disk Scheduling Disk Management Swap-Space Management RAID Structure Disk Attachment Stable-Storage Implementation Tertiary Storage Devices Operating System Issues Performance Issues. Disk Structure.

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604 views • 44 slides
Chapter 14: Mass-Storage Systems

Chapter 14: Mass-Storage Systems

Chapter 14: Mass-Storage Systems. Disk Structure Disk Scheduling Disk Management Swap-Space Management RAID Structure Disk Attachment Stable-Storage Implementation Tertiary Storage Devices Operating System Issues Performance Issues. Disk Structure.

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610 views • 44 slides
Chapter 11: Storage and File Structure

Chapter 11: Storage and File Structure

Chapter 11: Storage and File Structure. Chapter 11: Storage and File Structure. Overview of Physical Storage Media Magnetic Disks RAID Tertiary Storage Storage Access File Organization Organization of Records in Files Data-Dictionary Storage

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569 views • 36 slides
Tuning the Guts

Tuning the Guts

Tuning the Guts. Outline. Configuration. Tuning. Tuning IO priorities Tuning Virtual Storage Tuning for maximum concurrency Tuning for RAM locality The priority inversion problem Transferring large files How to throw hardware at a problem?. IO stack SSDs and HDDs RAID controller

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636 views • 35 slides
Operating Systems

Operating Systems

Operating Systems. Disk Scheduling. Price per Megabyte of Magnetic Hard Disk, From 1981 to 2004. Moving-head Disk Mechanism. Elements of File Management. Disk Scheduling.

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494 views • 26 slides
Disk Average Seek Time

Disk Average Seek Time

Disk Average Seek Time. Multi-platter Disk. read/write head . read/write arm. Disk. platter. track. cylinder. sector. Multi-platter Disk. Seek Time. measures the amount of time required for the read/write heads to move between tracks over the surface of the platters. 0.0 ms. 0.8 ms.

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507 views • 20 slides
Chapter 12: Mass-Storage Systems

Chapter 12: Mass-Storage Systems

Chapter 12: Mass-Storage Systems. Chapter 12: Mass-Storage Systems. Overview of Mass Storage Structure Disk Structure Disk Scheduling. Overview of Mass Storage Structure. Magnetic disks provide bulk of secondary storage of modern computers Drives rotate at 60 to 200 times per second

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338 views • 18 slides
Homework Assignment #4

Homework Assignment #4

Homework Assignment #4. J. H. Wang Nov. 19, 2008. Homework #4. Chap.11: 11.2, 11.6 Chap.12: 12.2, 12.6, 12.8 Due: three weeks ( Dec. 15, 2008 ). Chap.11 11.2: What are the advantages of the variant of linked allocation that uses a FAT to chain together the blocks of a file?

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345 views • 6 slides

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