Shulou(Shulou.com)06/02 Report--

LVM Logical Volume Manager

LVM allows users to dynamically adjust hard disk resources.

Deploying logical volumes

When deploying LVM, physical volumes, volume groups, and logical volumes need to be configured individually.

(PV Operation->VG Operation->LV Operation)

Deploying logical volumes

Pay attention to the problem of cutting units. There are two units of measure for cutting logical volumes. The first is in units of capacity, using the parameter-L.

The other is based on the number of basic units, using the parameter-l.

logical volume snapshot

LVM's snapshot volume feature has two characteristics:

The capacity of the snapshot volume must be equal to the capacity of the logical volume;

Snapshot volumes are valid only once and are automatically deleted as soon as a restore operation is performed.

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