Patent · US Active

Method, system, and computer readable medium for asynchronously processing write operations for a data storage volume having a copy-on-write snapshot

US8438353B1 · kind B1 · utility

7Cited by

0References

20Claims

0Family size

Assignee

Symantec Operating Corporation · US

Inventors

Prem Anand Ramanathan · Pune, IN
Niranjan Pendharkar · Pune, IN
Subhojit Roy · Pune, IN

Key dates

Filing date	Jul 11, 2011
Grant date	May 7, 2013
Priority date	—
Expiry date	Jul 11, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG06F2201/84
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method, system, and computer readable medium for asynchronously processing write operation on a volume having copy-on-write snapshots. In one embodiment, the method comprises the steps of: updating a normal mirror with write data associated with a write operation for the volume; asynchronously copying the write data from an asynchronous mirror to at least one copy-on-write snapshot; and, once the at least one copy-on-write snapshot is updated, updating the asynchronous mirror with the write data from the normal mirror.

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