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Setting up VDO

VDO is Linux's new method of deduplication, compression, and thin provisioning. This lab provides a safe environment where we will walk through setting up a VDO device and experimenting with different settings. *This course is not approved or sponsored by Red Hat.*

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Path Info

Level
Clock icon Intermediate
Duration
Clock icon 30m
Published
Clock icon Jul 23, 2020

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Table of Contents

  1. Challenge

    Install VDO and Ensure the Service Is Running

    1. To install VDO, run:

      yum -y install vdo

      We need to install with this method because of the kernel version that the lab server is using.

    2. Once complete, start up the daemon and enable it to run after reboot:

      systemctl start vdo && systemctl enable vdo

  2. Challenge

    Set up a 100G VM Storage Volume

    1. To set up the VDO storage volume, run:

      vdo create --name=ContainerStorage --device=/dev/nvme1n1 --vdoLogicalSize=100G --sparseIndex=disabled

    2. Set up a filesystem:

      mkfs.xfs -K /dev/mapper/ContainerStorage && udevadm settle

    3. Create a mount point, and then mount the filesystem:

      mkdir /mnt/containers && mount /dev/mapper/ContainerStorage /mnt/containers

    4. Add the filesystem to /etc/fstab to mount it after reboot:

      /dev/mapper/ContainerStorage /mnt/containers xfs defaults,_netdev,x-systemd.device-timeout=0,x-systemd.requires=vdo.service 0 0

  3. Challenge

    Set up a 60G Website Storage Volume

    1. To set up the VDO storage volume, run:

      vdo create --name=WebsiteStorage --device=/dev/nvme2n1 --vdoLogicalSize=60G

    2. Disable deduplication:

      vdo disableDeduplication --name=WebsiteStorage

    3. Set up a filesystem:

      mkfs.xfs -K /dev/mapper/WebsiteStorage && udevadm settle

    4. Create a mount point, and then mount the filesystem:

      mkdir /mnt/website && mount /dev/mapper/WebsiteStorage /mnt/website

    5. Add the filesystem to /etc/fstab to mount it after reboot:

      /dev/mapper/WebsiteStorage /mnt/website xfs defaults,_netdev,x-systemd.device-timeout=0,x-systemd.requires=vdo.service 0 0
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