US 12,493,414 B2
Redistribution of disks based on disk wear patterns
Ofir Ezrielev, Be′er Sheba (IL); Jehuda Shemer, Kfar Saba (IL); and Amihai Savir, Newton, MA (US)
Assigned to Dell Products L.P., Round Rock, TX (US)
Filed by Dell Products L.P., Round Rock, TX (US)
Filed on Oct. 14, 2022, as Appl. No. 18/046,652.
Prior Publication US 2024/0126451 A1, Apr. 18, 2024
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/0619 (2013.01) [G06F 3/0604 (2013.01); G06F 3/0653 (2013.01); G06F 3/0683 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method comprising:
providing a production storage system comprising disk drives that are grouped into production volumes;
providing a backup storage system comprising disk drives that are configured to store backups of the production volumes;
determining a wear pattern associated with disk drives of the production volumes of the storage system based on one or more SMART metrics, wherein the wear pattern is learned by a data protection system during operation of the storage system as applications perform writes to the disk drives, wherein the writes are performed according to a mapping;
determining a volume wear score for each of the production volumes using the wear scores of the disk drives;
generating a new mapping for the production volumes to the disk drives by the data protection system based on the volume wear scores of the production volumes, wherein the new mapping is configured to balance the wear pattern associated with the writes performed by the applications across all the disk drives of the storage system, wherein the new mapping causes the production volumes to be associated with different disk drives compared to a previous mapping;
performing a recovery operation from the backups based on the new mapping; and
continuing operations of the applications using the new mapping of the disk drives to the production volumes.