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					            By Sunil Datta
http://opensourcenuts.com
LVM – to do
 What is LVM?


 Benefit of using LVM?


 Diagrammatically represents steps to create LVM.
LVM
 LVM stands for Logical Volume Manager.
 LVM is a method of combining hard drive space into logical volumes
  that can be easily resized.
 The partition we will combine can be on the same hard disk or
  different hard disk.
 The /boot partition cannot be created on a logical volume group
  because the boot loader cannot read Logical Volume. So, you need
  to create a separate /boot partition.
 Physical Volume cannot span over multiple drives.
6)
     LVM – Diagram – two HDD
      Mount this partition using mount command and by making its enter in /etc/fstab

         LV1(50M)                                   Create required partition (here called
5)                                 450M             logical volume) using lvcreate command
                                                    and format them using mkfs command

                               VG1(500M)
                                                    Combine them as volume group using
4)                                                  vgcreate command
                            300M        200M


3)                                                                         Mark them as physical
     300M                                  200M                            volume with pvcreate
                                                                           command

2)   300M                                  200M                              Create partition
                                                                             using fdisk or parted
                                                                             command
1)
6)
     LVM – Diagram – single HDD
      Mount this partition using mount command and by making its enter in /etc/fstab
     LV1(50M)
                                                    Create required partition (here called
5)                         450M                     logical volume) using lvcreate command
                                                    and format them using mkfs command

                      VG1 (500M)
                                                    Combine them as volume group using
         4)                                         vgcreate command
                     300M       200M


               3)                                       Mark them as physical volume with
                     300M       200M                    pvcreate command


              2)     300M       200M                  Create partition using fdisk or parted
                                                      command

              1)
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posted:8/11/2011
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