RHEL 9.0 Virtual Data Optimizer (VDO)

Introduction

# dnf install -y vdo kmod-kvdo

Prerequisite

# parted /dev/vdb print
Model: Virtio Block Device (virtblk)
Disk /dev/vdb: 10.7GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags: 

Number  Start  End  Size  File system  Name  Flags

Configure

# parted /dev/vdb mkpart first 0G 10G
# parted /dev/vdb set 1 lvm on

# pvcreate /dev/vdb1
# vgcreate myvg-vdo /dev/vdb1 

# lvcreate --name mylv-vdo --size 5G --type vdo myvg-vdo

# lsblk /dev/vdb -fp
NAME                                  FSTYPE FSVER LABEL UUID                                   FSAVAIL FSUSE% MOUNTPOINTS
/dev/vdb                                                                                                       
└─/dev/vdb1                           LVM2_m LVM2        3O1e3e-NMIt-1y5q-jvWk-ONQh-doOn-3V719c                
  └─/dev/mapper/myvg--vdo-vpool0_vdata
                                                                                                               
    └─/dev/mapper/myvg--vdo-vpool0-vpool
                                                                                                               
      └─/dev/mapper/myvg--vdo-mylv--vdo

# mkfs.xfs /dev/mapper/myvg--vdo-mylv--vdo

# mkdir /myvg--vdo-mylv--vdo
# vim /etc/fstab
...
/dev/mapper/myvg--vdo-mylv--vdo   /myvg--vdo-mylv--vdo    xfs   defaults    0 0

# mount -a

Test

# echo "FOO" > /myvg--vdo-mylv--vdo/foo; cat /myvg--vdo-mylv--vdo/foo
FOO