CentOSLVM hard disk management and LVM resizing

LVM is short for LogicalVolumeManager (logical volume management), which is implemented by HeinzMauelshagen on the Linux2.4 kernel. LVM logically sets partitions of one or more hard disks, which is equivalent to a large hard disk. when the hard disk space is insufficient, LVM can continue to add partitions of other hard disks, this allows you to dynamically manage disk space, which is more flexible than common disk partitions. Compared with traditional disks and partitions, LVM provides a higher level for computers

LVM is short for Logical Volume Manager (Logical Volume management), which is implemented by Heinz Mauelshagen on the Linux 2.4 kernel. LVM logically sets partitions of one or more hard disks, which is equivalent to a large hard disk. when the hard disk space is insufficient, LVM can continue to add partitions of other hard disks, this allows you to dynamically manage disk space, which is more flexible than common disk partitions.

Compared with traditional disks and partitions, LVM provides a higher level of disk storage for computers. It allows the system administrator to allocate storage space for applications and users more conveniently. Storage volumes under LVM management can be changed and removed as needed (file system tools may need to be upgraded ). LVM also allows you to manage storage volumes by user group, allowing administrators to use more intuitive names (such as "sales" and "development ') replace the physical disk name (such as 'sda 'and 'sdb') to identify the storage volume.

LVM model: