LVM-Logical Volume Manager
- LVM provides a high-level view of the disk storage on a computer system.
- Provides the system administrator with a lot more flexibility in allocating storage to users/applications. It helps resizing/moving around the storage volumes(of course, the storage volumes, that are created under LVM's control)
- User-friendliness is another aspect, which can be talked about, in this context.Imagine, a situation, when the system administrator has to deal with the physical disk names such as "sda","sdb" etc.Instead, he can manage storage volumes in user-defines groups and also name them sensibly. Example: He could name volume groups as "Marketing", "HR", "Sales" etc to identify them easily.
Note: Every platform has its own native LVM and then there are third party Volume Managers like Veritas VxVM, that can be installed on the host machines.The LVM commands vary from one Volume Manager to another. Here is an easy reference guide:
http://www.unixguide.net/unixguide.shtml
Lets go through some common tasks that LVM can perform(Please be careful while repeating them on your system. Providing a wrong name of the partition could ruin your system-BE CAREFUL and know what are you doing)
The commands below belong to Linux LVM.
Initializing disks or disk partitions
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To be continued...
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