Filesystem snapshots can be accessed over data protocols at .zfs/snapshot
in the root of the filesystem. This directory contains a list of all snapshots on the filesystem,
and they can be accessed just like normal filesystem data (in read only mode). By default, the
'.zfs' directory is not visible when listing directory contents, but can be accessed by explicitly
looking it up. This prevents backup software from inadvertently backing up snapshots in addition to
Table 12-22 Snapshot Values
The .zfs directory is not visible when listing directory contents in the root of the
filesystem. This is default.
This .zfs directory appears like any other directory in the filesystem.
Scheduled Snapshot Label
This optional property appends a user-defined label to each scheduled snapshot and is blank by
default. The label can either be set for an individual share, or set for a project and inherited by
its shares, but not both.
Snapshot labels can help identify the project or share for which a snapshot was taken,
for example "project1:share1" could indicate a scheduled snapshot taken on share1 within project1.
Labels can be up to 35 alphanumeric characters and include special characters _ - . :