Demonstration

Operation Recording

JCOOP doesn’t take snapshots. It records the operations that change your filesystem. Here’s a simple example:

CREATE report.txt
WRITE report.txt
DELETE report.txt

These three events are written to the journal in order. Each entry includes a sequence number, timestamp and path metadata.

Selective Restore

During replay you can exclude events via policy. Suppose we want to restore report.txt without the deletion:

# policy exclude deletes
policy:
  exclude:
    - operation: DELETE

# result after replay under policy
report.txt exists

JCOOP replays the CREATE and WRITE events but skips the DELETE. The journal remains unchanged; the policy lives outside the journal and is auditable.

Snapshots vs Journals

To appreciate the difference between backups and JCOOP, compare the questions each technology answers:

JCOOP complements traditional backups and snapshots. It doesn’t replace them. Instead it answers the question backups can’t: How did I get here?