US Patent Application 17719416. BACKUP INTEGRITY VALIDATION simplified abstract
Contents
BACKUP INTEGRITY VALIDATION
Organization Name
Inventor(s)
Krishna Deepak Nuthakki of Bangalore (IN)
Jehuda Shemer of Kfar Saba (IL)
BACKUP INTEGRITY VALIDATION - A simplified explanation of the abstract
- This abstract for appeared for US patent application number 17719416 Titled 'BACKUP INTEGRITY VALIDATION'
Simplified Explanation
The abstract describes a system where a primary storage array calculates signatures of chunks of data from a production device and sends them to a secondary storage array. These signatures are stored in the same location on the secondary storage array as the corresponding chunks on the production device. Snapshots of the production and secondary devices are created and associated as a pair.
Later, when changes are made to the production device, the primary storage array calculates signatures of the changed chunks and sends them to the secondary storage array. New snapshots of the devices are created and associated as a new pair.
To validate the data, signatures of the chunks from the secondary device are calculated and compared with the signatures stored on the secondary device. This ensures the integrity of the data.
Original Abstract Submitted
A primary storage array calculates signatures of chunks of production device data that are sent to a target device on a secondary storage array. The chunk signatures are sent to a signature device on the secondary storage array, where the chunk signatures are stored within the same LBA range on the signature device as their corresponding chunks are stored on the target device. Snaps of the target and signature device are created and associated as a snap pair. Later, the primary storage array calculates signatures of changed chunks of production device data that are sent to the target device. The changed chunk signatures are sent to the signature device. New snaps of the target and signature device are created and associated as a new snap pair. Chunk data is validated by calculating signatures of the chunks from the target device and comparing those signatures with the chunk signatures from the signature device.
