lvreduce

Lvreduce is a command line tool used in Unix-like operating systems, primarily Linux, to reduce the size of a logical volume (LV) within a volume group (VG). It is typically used to reclaim unused space or redistribute storage resources. The lvreduce command allows the user to specify the desired size for the LV, which can be smaller or equal to the current size. This tool can be particularly useful in scenarios where an LV has unused space that can be utilized for other purposes. The lvreduce command requires the volume group name and logical volume path as arguments, and it supports various options for specifying the size and other parameters. It is important to note that resizing a logical volume involves a level of risk, and proper backup procedures or precautions should be taken before using lvreduce. Additionally, lvreduce cannot be used on a mounted file system and may require unmounting before execution.