A Brief Look
Download
1 / 9

A Brief Look By: Aaron J Hudson - PowerPoint PPT Presentation


  • 60 Views
  • Uploaded on

A Brief Look By: Aaron J Hudson. What is Logical Volume Management?. Software that allows the user to edit the storage configuration without manipulating the actual hardware and vice versa. How Does LVM Work?. The LVM hides information about where information is stored, on which hardware,

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' A Brief Look By: Aaron J Hudson' - steel-salazar


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

A Brief Look

By:

Aaron J Hudson


What is logical volume management
What is Logical Volume Management?

Software that allows the user to edit the storage configuration without

manipulating the actual hardware and vice versa.


How does lvm work
How Does LVM Work?

The LVM hides information

about where information is

stored, on which hardware,

and where exactly on that

hardware from the entire

Operating System allowing

it to manipulate the

configuration of the storage

capacities.


Configuring lvm using suse linux as the os of choice command line
Configuring LVM using SuSe Linux as the OS of choice (command line)

  • 3 set-up steps for LVM

    • Define & Initialize Physical Volumes planning to use

    • Define Volume Groups planning to group PVs together

    • Set up Logical Volumes on each VG


Command line tools for configuration
Command line tools for configuration (command line)

  • pvcreate /dev/device [/dev/device]

    • pvcreate command initializes a physical device as a physical volume.

  • vgcreate vg-name /dev/device [dev/device]

    • vgcreate command creates a volume group with all the physical volumes specified.

  • lvcreate –L size –n lv-name vg-name

    • lvcreate command creates a logical volume on the volume group vg-name.


Extending volume without losing data
Extending Volume without losing data (command line)

  • First you create your physical volumes by the following command:

    • pvcreate /dev/device1

  • Then you extend your volume groups using this command:

    • vgextend vg-name /dev/device1


Shrinking volume without losing data
Shrinking Volume without losing data (command line)

  • Removing a physical volume is just as simple by using the following command:

    • vgreduce vg-name /dev/device


Advantages
Advantages (command line)

  • LVM has the capacity to manage extremely large data sets

  • PVs can be added, VG’s and VL’s can be extended while file systems are still mounted and in use


Source page
Source Page (command line)

  • SuSe Linux (LVM)

  • Google (images)

  • Cool Text (fonts)


ad