News Column

"Method and System for Copyback Completion with a Failed Drive" in Patent Application Approval Process

June 17, 2014

By a News Reporter-Staff News Editor at Information Technology Newsweekly -- A patent application by the inventors Shanbhag, Siddharth Suresh (Bangalore, IN); Shetty H, Manoj Kumar (Bangalore, IN); Gururaj, Pavan (Bangalore, IN), filed on November 29, 2012, was made available online on June 5, 2014, according to news reporting originating from Washington, D.C., by VerticalNews correspondents.

This patent application is assigned to Lsi Corporation.

The following quote was obtained by the news editors from the background information supplied by the inventors: "Direct Attached Storage (DAS) refers to a digital storage system directly attached to a server or workstation, without a storage network in between. The term is generally used to differentiate non-networked storage from storage area network (SAN) and Network-attached storage (NAS). Typically, a DAS system is comprised of a data storage device (a collection of hard disk drives in a suitable chassis) connected directly to a computer through a host bus adapter (HBA). Between the computer and the data storage devices there is no network device, such as a hub, switch or router."

In addition to the background information obtained for this patent application, VerticalNews journalists also obtained the inventors' summary information for this patent application: "An embodiment of the invention may therefore comprise a system for continuing a copyback in a system in a storage system, said system comprising a first drive, and a second drive, the second drive initiating a copyback using a third drive, wherein, if the second drive fails during the copyback such that the copyback is aborted, the third drive is enabled to act as a rebuild drive and be rebuilt from the first drive.

"An embodiment of the invention may further comprise a method of continuing a copyback in a system with a plurality of drives, the method comprising creating a system comprising at least a first drive and a second drive, initiating a copyback on the second drive to a third drive, and if the second drive fails such that the copyback is aborted, initiating a rebuild on the third drive from the first drive.


"FIG. 1 shows a copyback operation with two drives.

"FIG. 2 shows a system where a drive fails.

"FIG. 3 shows a copyback being aborted.

"FIG. 4 is a flow diagram of a copyback."

URL and more information on this patent application, see: Shanbhag, Siddharth Suresh; Shetty H, Manoj Kumar; Gururaj, Pavan. Method and System for Copyback Completion with a Failed Drive. Filed November 29, 2012 and posted June 5, 2014. Patent URL:

Keywords for this news article include: Lsi Corporation, Information Technology, Information and Data Storage.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC

For more stories covering the world of technology, please see HispanicBusiness' Tech Channel

Source: Information Technology Newsweekly

Story Tools Facebook Linkedin Twitter RSS Feed Email Alerts & Newsletters