公开(公告)号：US11899592B2

公开(公告)日：2024-02-13

申请号：US16671802

申请日：2019-11-01

申请人： VMware LLC

发明人： Austin Clements ,  Irfan Ahmad ,  Jinyuan Li ,  Murali Vilayannur

IPC分类号： G06F12/1018 ,  G06F16/22 ,  G06F16/30 ,  G06F16/27 ,  G06F16/31

CPC分类号： G06F12/1018 ,  G06F16/2255 ,  G06F16/273 ,  G06F16/30 ,  G06F16/325 ,  G06F2212/152 ,  G06F2212/656

摘要： Decentralized deduplication operations in a computer system employ a hash index that is a variant of a B+ tree to support both efficient sequential updates as well as efficient random updates. Sequential update is selected when deduplication is infrequently performed, such as on the order of days, and random update is selected when deduplication is performed more frequently, such as on the order of seconds. More frequent deduplication may be beneficial during periods when large amounts of temporary duplicate data are created, and the system may not have enough storage space to accommodate the temporary spike in demand.