US 12,248,374 B2
Last resort access to backups stored in vaults
Ofir Ezrielev, Be'er Sheba (IL); Yehiel Zohar, Sderot (IL); and Lee Serfaty, Be'er Sheba (IL)
Assigned to Dell Products L.P., Round Rock, TX (US)
Filed by Dell Products L.P., Round Rock, TX (US)
Filed on Apr. 27, 2023, as Appl. No. 18/308,224.
Prior Publication US 2024/0362126 A1, Oct. 31, 2024
Int. Cl. G06F 11/14 (2006.01); G06F 21/60 (2013.01)
CPC G06F 11/1469 (2013.01) [G06F 11/1451 (2013.01); G06F 21/602 (2013.01); G06F 2201/84 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
initiating a recovery operation to recover a production system;
identifying a point in time for the recovery operation, wherein the point in time is associated with an initial backup stored in a first vault associated with the production system;
determining that a first key needed to decrypt the initial backup in the first vault is unavailable;
identifying a starting backup in a second vault associated with the production system;
identifying a second bridge backup stored in the second vault that is after the starting backup in the second vault;
recovering the production system up to the second bridge backup using the starting backup and the second bridge backup in the second vault; and
continuing to recover the production system from a first bridge backup stored in the first vault to an incremental backup in the first vault corresponding to the point in time,
wherein the first bridge backup and the second bridge backup share a common point in time, the starting backup has a point in time prior to the point in time of the first and second bridge backups, and the incremental backup has a point in time after the point in time of the first and second bridge backups.