SG0-001 · Question #431
Which of the following is LVM used for when mirroring or striping?
The correct answer is C. Logical volume. LVM (Logical Volume Manager) is primarily used to create and manage logical volumes, which can then be configured for mirroring or striping across underlying physical storage.
Question
Which of the following is LVM used for when mirroring or striping?
Options
- AMount point
- BDisk group
- CLogical volume
- DFile system
How the community answered
(29 responses)- A3% (1)
- C90% (26)
- D7% (2)
Why each option
LVM (Logical Volume Manager) is primarily used to create and manage logical volumes, which can then be configured for mirroring or striping across underlying physical storage.
A mount point is a directory where a logical volume is attached in the file system hierarchy, but LVM performs mirroring/striping at the logical volume level, not directly on the mount point.
A disk group (known as a volume group in LVM) is a collection of physical volumes, and while logical volumes are created within them, the actual mirroring or striping operations apply to the logical volumes themselves, not the group as a whole.
LVM is used to create logical volumes, which are flexible storage units that abstract physical disk space. These logical volumes can then be mirrored (for redundancy) or striped (for performance) across multiple physical volumes or disk groups, providing advanced storage management capabilities.
A file system is constructed on top of a logical volume to organize and manage files, but LVM operates at a lower block level to manage the storage before the file system is created and handles mirroring/striping for the logical volume.
Concept tested: LVM logical volume management
Source: https://docs.oracle.com/en/operating-systems/linux/oracle-linux/9/docs/logical-volume-manager.html
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