Invention Grant
US09372794B2 Using logical block addresses with generation numbers as data fingerprints to provide cache coherency
有权
使用具有生成号码的逻辑块地址作为数据指纹来提供高速缓存一致性
- Patent Title: Using logical block addresses with generation numbers as data fingerprints to provide cache coherency
- Patent Title (中): 使用具有生成号码的逻辑块地址作为数据指纹来提供高速缓存一致性
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Application No.: US13926763Application Date: 2013-06-25
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Publication No.: US09372794B2Publication Date: 2016-06-21
- Inventor: Michael N. Condict
- Applicant: NetApp, Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: NetApp, Inc.
- Current Assignee: NetApp, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: LeClairRyan, a Professional Corporation
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F12/08
Abstract:
The technique introduced here involves using a block address and a corresponding generation number as a “fingerprint” to uniquely identify a sequence of data within a given storage domain. Each block address has an associated generation number which indicates the number of times that data at that block address has been modified. This technique can be employed, for example, to maintain cache coherency among multiple storage nodes. It can also be employed to avoid sending the data to a network node over a network if it already has the data.
Public/Granted literature
- US20140173220A1 Using Logical Block Addresses with Generation Numbers as Data Fingerprints to Provide Cache Coherency Public/Granted day:2014-06-19
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