- A Cloud Guru
Recover Mis-Configured or Broken LVM Configurations
In this exercise, you will need to assess the cause of a broken LVM configuration and resolve it without losing the data in the volume. *This course is not approved or sponsored by Red Hat.*
Table of Contents
Resolve LVM configuration.
Check the mounts with
Attempt to mount the volume:
View the archive metadata:
vgcfgrestore -l <VOLGROUP NAME>
Review the changes:
"Created before executing 'lvresize -L500M /dev/vg_1/lv_1'"
Restore prior to latest change:
vgcfgrestore -f /etc/lvm/archive/vg_1_00002-84057####.vg vg_1
Deactivate and reactive the volume:
lvchange -an /dev/<VOLGROUP>/<LOG>
lvchange -ay /dev/<VOLGROUP>/<LOG>
Verify LVM volume contents.
The MD5s of each file in the volume are available in the
/home/cloud_user/lvm_md5s.txtfile. Validate that the
md5sums haven't changed for the files in the
for i in $(ls /lvm_mount/); do md5sum /lvm_mount/$i; done
What's a lab?
Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.