LVM How To Create Pool (dynamically allocated and not fully allocated)

The main use I have for this is virtual servers being able to use an LVM volume but not occupying all of the space.  It saves time in deploying machines and copying them so you are only copying the space they are using (eg. 5GB / 60GB vs the full 60GB).  There are some disadvantages which is mainly the fact that thin pools by their nature allow you to "overallocate" disk space which is that you could use more space than is available on the disk itself and corrupt your data.

So in my opinion it is best to avoid thin pools EXCEPT if you have a testing environment you need to get up quickly or if you REALLY know what you are doing (eg. you are sure the disk space won't be overallocated or you have some other safeguards).

 

How To Create An LVM Thin Pool

-L = the size of the pool

--thinpool = specifies we are creating a thin pool

vmthinpool = the name of our thinpool

vms = the name of the vg / volume group we are creating it on.

lvcreate -L 500GB --thinpool vmthinpool vms
  Using default stripesize 64.00 KiB.
  Logical volume "vmthinpool" created.
 


Tags:

lvm, dynamically, allocated, virtual, servers, volume, occupying, saves, deploying, copying, eg, gb, vs, disadvantages, mainly, pools, quot, overallocate, disk, corrupt, overallocated, safeguards, thinpool, specifies, creating, vmthinpool, vms, vg, lvcreate, default, stripesize, kib,

Latest Articles

  • Microsoft Teams Linux - Calendar Doesn't Work Missed Meetings!
  • Scanner not working in Linux Ubuntu Fedora Mint Debian over the network? Use sane-airscan!
  • How To Boot, Install and Run Windows 2000 on QEMU-KVM
  • bash cannot execute permission denied
  • Huion and Wacom Tablets How To Install in Linux Mint / Ubuntu and make the stylus work properly
  • ffmpeg how to cut certain parts of video out
  • ffmpeg how to concat and join two video clips
  • mencoder instead of ffmpeg to join or concatenate video files with different audio streams
  • Linux How To Stop Missing Drive from Halting Boot Process in fstab
  • How To Replace Audio Track of Video using ffmpeg
  • qemu-img convert formats vdi vmdk raw qcow2
  • Linux and Windows Dual Boot Crazy Time Issues
  • dynagen / dynamips 100% high CPU usage solution - how to set the idlepc value
  • How To Setup a Cisco CME (Cisco Manager Express) Virtual Router under Linux using dynamips and dynagen
  • Linux Mint Ubuntu Debian CentOS Dual Boot Install Issues
  • Linux Mint Ubuntu Debian Centos RHEL no sound solution
  • Linux Mint/Debian/Ubuntu/Centos Installer black grub screen and blank screen after trying to boot installer or main OS
  • Linux Mint Dual Boot Install Avoid Wiping our your Main C: drive /dev/sda MBR and EFI
  • QEMU-KVM soundhw deprecated how to enable sound in QEMU 4.x series
  • Virtualbox Error Cannot register the hard disk because a hard disk with UUID already exists solution