Posts Tagged ‘lvm snapshot’

This tutorial is all about LVM SNAPSHOT .Please Don’t think that it is a substitute of media backup,no it’s not.LVM Snapshot features provides the ability to ¬†create virtual images of device at a particular instant without causing any service interruption. so you can also say that Snapshot copies of a file system are just a virtual copy and not a media backup for file system.snapshot features requires a minimal amount of storage.3-5% of the original capacity is enough to store and maintain snapshot data.

Also read:

lvm configuration in Linux.

Now what happen when change is made to original device after a snapshot is taken?

Answer is snapshot features make a copy of the changed data area as it was prior to the changes so that it can reconstruct the state of the device.