Invention Application
US20160110109A1 USING SCRATCH EXTENTS TO FACILITATE COPYING OPERATIONS IN AN APPEND-ONLY STORAGE SYSTEM
审中-公开
使用剪切存在可以在附加的存储系统中实现复制操作
- Patent Title: USING SCRATCH EXTENTS TO FACILITATE COPYING OPERATIONS IN AN APPEND-ONLY STORAGE SYSTEM
- Patent Title (中): 使用剪切存在可以在附加的存储系统中实现复制操作
-
Application No.: US14519907Application Date: 2014-10-21
-
Publication No.: US20160110109A1Publication Date: 2016-04-21
- Inventor: James Cowling , James Turner
- Applicant: Dropbox, Inc.
- Main IPC: G06F3/06
- IPC: G06F3/06 ; G06F12/02
Abstract:
An append-only data storage system is described that stores sets of data blocks in extents that are located in storage devices. During operation of the system, upon receiving a request to copy an extent from a source storage device to a destination storage device, the system creates a scratch extent on the destination storage device, and associates the scratch extent with a private identifier, whereby the scratch extent can only be accessed through the private identifier. The system uses the private identifier to perform a copying operation that copies the extent from the source storage device to the scratch extent on the destination storage device. After the copying operation is complete and the scratch extent is closed, the system associates the scratch extent with a public identifier, whereby the copy of the extent on the destination storage device becomes publically accessible to other entities in the data storage system.
Public/Granted literature
- US10248356B2 Using scratch extents to facilitate copying operations in an append-only storage system Public/Granted day:2019-04-02
Information query
