Main Definition
ROT Data (Redundant, Obsolete, and Trivial) data refers to stored information that no longer provides business or research value: duplicate files, outdated versions, ownerless files, temporary files, or data tied to long-completed projects. It takes up storage, inflates costs, and gets in the way of finding what actually matters.
The acronym breaks into three categories.
Redundant data is duplicates: copies of the exact same file and file version living on someone’s desktop, a shared server, and two cloud folders because it got copied during collaboration or backups.
Obsolete data is information that has aged out – files from employees who left years ago, superseded document versions, records that no longer apply. Obsolete data can also apply to a wide variety of temporary files, such as BCL files and temporary BAM files created during scientific research.
Trivial data is the rest: personal photos, casual emails, temp files that could vanish tomorrow and nobody would notice.
Industry estimates put ROT at anywhere from 33% to 85% of organizational content
Starfish makes ROT visible by surfacing duplicate files, ownerless data, stale data, and inactive project directories directly in its reporting, ranked by the storage capacity they consume. From there, administrators or data owners can act immediately — tagging, archiving, or deleting ROT candidates through the same interface — turning a typically invisible problem into a routine, trackable cleanup process.
Related Links
- Exploring Metadata Solutions for Large-Scale Unstructured Data Management | Starfishstorage
- Cadence Group: ROT Data Blog | Cadence Group
- UW Finance: ROT Squad Home | University of Washington
- Rational Enterprise: Managing Data Rot | Rational Enterprise
- Veritas Global Databerg Report | Veritas.com
