Wednesday, November 12, 2008

Removing a RAID partition

To remove a RAID device that consists of 2 partitions (sda7 and sdb7) that has an LVM2 VG on top:
- lvremove to remove all LVs
- vgremove to remove all VGs
- pvremove to remove all PVs
- mdadm --stop to stop the device
- mdadm --remove to remove the device
- mdadm --zero-superblock to erase the md superblock on each of the 2 partitions
- update /etc/mdadm.conf to remove the md device

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