A snapshot is a read-only version of a blob that's taken at a point in time.
A snapshot of a blob is identical to its base blob, except that the blob URI has a DateTime value appended to the blob URI to indicate the time at which the snapshot was taken. For example, if a page blob URI is http://storagesample.core.blob.window..., the snapshot URI is similar to http://storagesample.core.blob.window....
00:00 Introduction
00:29 Uploading a blob
01:26 Creating Snapshots
02:31 Promoting a snapshot
03:07 Viewing the snapshot