Hello dear user!
Snapshot definition
It is a mirror of a data set at a particular moment, also known as an instant copy, which is a fully available copy of the data set.
The Storage Networking Industry Association (SNIA) defines a snapshot as a fully available copy of a specified data set that includes an image of the corresponding data at a point in time (the point in time when the copy begins). A snapshot can be a duplicate of the data it represents, or it can be a replicate of the data.
Please check the following link for more details about Snapshot Feature Description.
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