Inventor

OTTERNESS NOEL S

US13 patents

Patents

13 patents

US6681339B2Jan 20, 2004

System and method for efficient failover/failback techniques for fault-tolerant data storage system

IBM181 citations98

US6654831B1Nov 25, 2003

Using multiple controllers together to create data spans

IBM207 citations98

US6574709B1Jun 3, 2003

System, apparatus, and method providing cache data mirroring to a data storage system

IBM164 citations98

US6460122B1Oct 1, 2002

System, apparatus and method for multi-level cache in a multi-processor/multi-controller environment

IBM166 citations98

US6182198B1Jan 30, 2001

Method and apparatus for providing a disc drive snapshot backup while allowing normal drive read, write, and buffering operations

IBM308 citations98

US6792472B1Sep 14, 2004

System, method and computer readable medium for intelligent raid controllers operating as data routers

IBM125 citations97

US6601138B2Jul 29, 2003

Apparatus system and method for N-way RAID controller having improved performance and fault tolerance

IBM77 citations97

US6490659B1Dec 3, 2002

Warm start cache recovery in a dual active controller with cache coherency using stripe locks for implied storage volume reservations

IBM136 citations97

US6247099B1Jun 12, 2001

System and method for maintaining cache coherency and data synchronization in a computer system having multiple active controllers

IBM228 citations96

US6950900B1Sep 27, 2005

Method and apparatus for migrating data having a format of a first type to a format of a second type

IBM41 citations92

US6792505B2Sep 14, 2004

System apparatus and method for storage device controller-based message passing having effective data channel bandwidth and controller cache memory increase

IBM43 citations92

US6487680B1Nov 26, 2002

System, apparatus, and method for managing a data storage system in an n-way active controller configuration

IBM50 citations92

US6745324B1Jun 1, 2004

Dynamic firmware image creation from an object file stored in a reserved area of a data storage device of a redundant array of independent disks (RAID) system

IBM18 citations84