Patent · US Active

Non-disruptive data migration from a source storage array to a destination storage array

US11461012B2 · kind B2 · utility

1Cited by

6References

17Claims

0Family size

Assignee

EMC IP Holding Company LLC · US

Inventors

Changyu Feng · Beijing, CN
Yousheng Liu · Beijing, CN
Haiying Tang · Beijing, CN
Xiaobo ZHANG · Shanghai, CN
Sihang Xia · Beijing, CN

Key dates

Filing date	Oct 4, 2019
Grant date	Oct 4, 2022
Priority date	—
Expiry date	Jan 13, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG06F3/0689
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Data access techniques involve: determining whether there is a copy operation that is being performed from a first LU to a second LU in response to receiving a write operation request for a first data block in the first logic unit (LU); detecting a copy status of data in the first data block in response to determining that there is the copy operation that is being performed; and determining a processing strategy of the write operation request during execution of the copy operation based on the copy status.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.