Invention Grant
- Patent Title: Fast recovery of data in a geographically distributed storage environment
-
Application No.: US16240272Application Date: 2019-01-04
-
Publication No.: US11023331B2Publication Date: 2021-06-01
- Inventor: Mikhail Danilov , Yohannes Altaye
- Applicant: EMC IP Holding Company LLC
- Applicant Address: US MA Hopkinton
- Assignee: EMC IP Holding Company LLC
- Current Assignee: EMC IP Holding Company LLC
- Current Assignee Address: US MA Hopkinton
- Agency: Amin, Turocy & Watson, LLP
- Main IPC: G06F11/14
- IPC: G06F11/14 ; H04L29/08 ; G06F16/27 ; G06F11/10 ; H03M13/15

Abstract:
Described herein, system that facilitates recovery of an object segment in a geographically distributed storage environment. According to an embodiment, a system can comprise receiving a read request to read an object segment from a first data chunk stored in a geographically diverse data storage system, wherein the first data chunk is inaccessible, executing a GEO recovery process in response to determining that the first data chunk is inaccessible, wherein the GEO recovery process comprises accessing a first slice of data from a second data chunk stored in the geographically diverse data storage system, accessing a second slice of data from a third data chunk stored in the geographically diverse data storage system, and applying an XOR operation to the first slice of data and the second slice of data to determine a third slice of data, and extracting the object segment from the third slice of data.
Public/Granted literature
- US20200218616A1 FAST RECOVERY OF DATA IN A GEOGRAPHICALLY DISTRIBUTED STORAGE ENVIRONMENT Public/Granted day:2020-07-09
Information query