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The
same as non-LVM system that stores meta data containing partitions information
in the disk label situated at the beginning of disk, logical volumes and meta
data related to volume groups are stored in VGDA (Volume Group Descriptor Area)
at the beginning position of physical volumes. VGDA includes the following
contents: PV descriptor, VG descriptor,
Starting
up a LVM system, the system activates VGs and loads VGDA to internal memory so
as to identify
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