公开(公告)号：US09442807B1

公开(公告)日：2016-09-13

申请号：US13935405

申请日：2013-07-03

Applicant: Symantec Corporation

Inventor： Xianbo Zhang ,  Haigang Wang ,  Haibin She ,  Wim Goedertier

IPC: G06F17/30 ,  G06F7/00 ,  G06F11/14

CPC classification number: G06F17/30159

Abstract: In some embodiments, a method of maintaining a reference list for data deduplication is provided. The method includes discarding a newly arriving data segment in response to finding a fingerprint of the newly arriving data segment matches an existing fingerprint in a plurality of fingerprints on a fingerprint-to-file reference list. The method includes adding, in the fingerprint-to-file reference list, to a list for the existing fingerprint, a source for the newly arriving data segment, in response to the fingerprint-to-file reference list indicating the existing fingerprint does not correspond to a hot data segment and setting an indication in the fingerprint-to-file reference list that the existing fingerprint corresponds to the hot data segment in response to the list for the existing fingerprint meeting or exceeding a predetermined number of entries. Other embodiments are included.

Abstract translation: 在一些实施例中，提供了维护用于重复数据删除的参考列表的方法。 该方法包括：响应于找到新到达的数据段的指纹，匹配指纹到文件参考列表上的多个指纹中的现有指纹，丢弃新到达的数据段。 该方法包括在指纹到文件参考列表中添加现有指纹的列表，响应于指示现有指纹的指纹到文件参考列表，新到达的数据段的源不对应 到达热数据段并且在指纹到文件参考列表中设置现有指纹对应于热数据段的指示，以响应于现有指纹会议的列表或超过预定数量的条目。 包括其他实施例。