Self-healing recovery of files using a cyber recovery vault for deduplication file systems

A method comprising:

• striping a container holding compression regions of a file to be backed up across a plurality of disks in a disk array to first backup the file in primary storage;
• providing a cyber security vault coupled to the primary storage through an air gapped connection;
• storing, through a second backup, the compression regions in the cyber security vault;
• making a point-in-time (PIT) copy of the compression regions in a namespace of the cyber security vault, and applying a retention lock to the PIT copy;
• detecting a failed index lookup resulting in a missing segment for an access to data in a compression region of the container;
• and
• providing the missing segment from the PIT copy in the cyber security vault.

A system comprising:

• a backup server copying data to be backed up from a production system to a backup system in a datacenter;
• a cyber security vault coupled to the data center through an air gapped connection, wherein the backup server copies at least a portion of the data to be backed up to a first namespace in cyber security vault;
• a copy component making a point-in-time (PIT) copy of the portion of data to a second namespace, and retention locking the copied portion of data in the second namespace;
• an analysis component detecting a corrupted data element in the data to be backed up, and providing a missing data element for the corrupted data element from the PIT copy in the cyber security vault.