Linux LVM is a logical volume manager for the Linux OS that manages disk drives and other data storage devices. Using it, It is possible to create single logical volumes on several physical disks, add and replace them in a running system, resize logical volumes, create various RAID configuration, and so on. You may read more about Linux LVM on this Wikipedia article: Logical Volume Manager (Linux) .
R-Linux automatically detects disks from LVMs and creates their virtual volumes automatically. At the same time, R-Linux gives access to the components of the virtual LVM volumes (hard drives and images).
When an automatically created LVM volume is selected, R-Linux highlights its components. It also highlights the LVM volume that Linux may itself create from the same components.
R-Linux shows broken virtual LVM volumes in pink.