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→Getting Information and Logical Volumes
As we can see the in the above example, VolGroup00 has a physical extend size of 32MB and has a total of 19.78Gb available for allocation to logical volumes. Currently 632 physical extents are allocated equaling the total 19.78Gb capacity. If we want to increase the space allocated to any logical volumes in VolGroup00 we will need to add one or more physical volumes.
Information about logical volumes in a volume group may similarly be obtained using the ''lvdisplay '' command:
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As shown in the above example 17.81Gb of the space in VolGroup00 is allocated to logical volume LogVol00 and 1.94Gb to LogVol01. Now that we know what space is being used it is often helpful to understand which devices are providing the space (in other words which devices are being used as physical volumes). To obtain this information we need to run the ''pvdisplay'' command:
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