File and directory restoration

You can restore the files and directories that are referenced by a snapshot alias by copying data from the snapshot, cloning a file from the snapshot, or reverting the entire snapshot.

Copying a file from a snapshot duplicates the file, which roughly doubles the amount of storage space consumed. Even if you delete the original file from the non-snapshot directory, the copy of the file remains in the snapshot.

Cloning a file from a snapshot also duplicates the file. However, unlike a copy, which immediately consumes additional space on the cluster, a clone does not consume any additional space on the cluster unless the clone or cloned file is modified.

Reverting a snapshot replaces the contents of a directory with the data stored in the snapshot. Before a snapshot is reverted, SnapshotIQ creates a snapshot of the directory that is being replaced, which enables you to undo the snapshot revert later. Reverting a snapshot can be useful if you want to undo a large number of changes that you made to files and directories. If new files or directories have been created in a directory since a snapshot of the directory was created, those files and directories are deleted when the snapshot is reverted.

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If you move a directory, you cannot revert snapshots of the directory that were taken before the directory was moved.