US 12,189,501 B2
Mechanism for increasing data protection in storage failure scenarios
Sean Christopher Kocol, Vista, CA (US)
Assigned to Samsung Electronics Co., Ltd., (KR)
Filed by Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed on Dec. 8, 2022, as Appl. No. 18/077,298.
Claims priority of provisional application 63/405,035, filed on Sep. 9, 2022.
Prior Publication US 2024/0086287 A1, Mar. 14, 2024
Int. Cl. G06F 11/16 (2006.01); G06F 11/20 (2006.01)
CPC G06F 11/1662 (2013.01) [G06F 11/2097 (2013.01); G06F 11/2041 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
generating a new storage target assignment for a placement group (PG) as a last started set, the PG comprising the last started set and a last clean set, wherein the last started set comprises a current set of storage targets assigned for the PG, and the last clean set comprises a set of storage targets assigned for the PG at a last time all data stores in its acting set of storage targets were online and up-to-date;
performing a process to rebalance or add new data stores in the last started set;
storing one or more of the new data stores in a supplemental clean list; and
performing one or more update operations on the last started set, based on the supplemental clean list.