How do I convert my LVM root disk to LVM mirror after installation of Red Hat Enterprise Linux 7?
Issue
- I have installed RHEL7 with config:
vda1: /boot as xfs
vda2: / as LVM.
- vdb will be used as sub-mirror. Now I need to create RAID1 mirror.
- How I can make system more resilient by having 2 disks. If one fails, the system should continue to boot from other disk?
- Need to replace root disk on LVM, how can we replace a root disk which is on LVM?
- What is the procedure to do root mirroring on LVM?
Environment
- Red Hat Enterprise Linux(RHEL)7.0
/dev/vdais system disk on which OS has been installed/dev/vdbis spare disk which is being used for mirroring
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