Snapshot Cauterization | SNIA

Abstract

Snapshot cauterization and MetaSnaps When a user takes a snapshot of a filesystem, it captures all the data, some of which the user may not want to retain. Presently there are no mechanisms for a user to delete this data without deleting the whole snapshot. We present methods to cauterize such unwanted data from a snapshot, to reclaim space. This technique can be used to build more features which will be useful for file system analytics.

Learning Objectives

Snapshots
Need for Snapshot cauterization
Maintaining Snapshot consistency
Future enhancements