Writable snapshots are a data storage technique for generating temporary copies of a ‘golden’ dataset, while eliminating unnecessary duplication of data and the resulting capacity overhead.
Traditional methods of copying entire directory trees are often costly, both in terms of storage consumption and administrative overhead. They often rely on creating writable copies of a directory tree through:
Dell PowerScale writable snapshots, available in OneFS 9.3 and later, gives you the ability to create fast, simple, efficient copies of datasets. It enables a writable view of a regular snapshot that is presented at a target directory and is accessible by clients across the full range of supported NAS protocols.