Inventor

YUDENFRIEND HARRY MORRIS

US39 patents

⚠️ This page may combine multiple inventors who share the name “YUDENFRIEND HARRY MORRIS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

YUDENFRIEND HARRY MORRIS

IBM

Peer-to-peer backup system with failure-triggered device switching honoring reservation of primary device

System, method, and program for determining the availability of paths to a device

Concurrent switch to shadowed device for storage controller and device errors

Database backup system ensuring consistency between primary and mirrored backup database copies despite backup interruption

Variable timeout method for improving missing-interrupt-handler operations in an environment having I/O devices shared by one or more systems

Variable timeout method in a missing-interrupt-handler for I/O requests issued by the same operating system

Control unit threshold timeout controls for software missing interrupt handlers in operating systems

Adjusting timestamps to preserve update timing information for cached data objects

Method and system for dynamically assigning addresses to an input/output device

System for reassigning alias addresses to an input/output device

System, method, and program for determining the availability of interfaces to a control unit

Input/output data access request with assigned priority handling

System for accessing an input/output device using multiple addresses

Logical path scheduler for disconnecting currently connected paths to enable logical paths awaiting connection to connect based on path control tables thereof

Input/output recovery which is based an error rate and a current state of the computer environment

Input/output recovery method which is based upon an error rate and a current state of the computer environment

Defining characteristics between processing systems

Apparatus, system, and method for accessing a preferred path through a storage controller

Assigning alias addresses to base addresses

Method for determining the availability of paths to a device

System, method and program for determining the availability of interfaces to a device from information provided by the device

Reassigning storage volumes from a failed processing system to a surviving processing system

Input/output recovery system which is based upon an error rate and a current state of the computer environment

Verifying a record as part of an operation to modify the record

Modifying host input/output (I/O) activity to allow a storage drive to which I/O activity is directed to access requested information

System to delegate virtual storage access method related file operations to a storage server using an in-band RPC mechanism

Method for providing an address format compatible with different addressing formats used for addressing different sized address spaces

System and program for determining the availability of paths to a device

Reassigning storage volumes from a failed processing system to a surviving processing system

System and article of manufacture for removing alias addresses from an alias address pool

Method for removing alias addresses from an alias address pool

Communicating packets between devices involving the use of different communication protocols

AMANN STEFAN

Data protection method for variable length records by utilizing high performance block storage metadata

Data protection for variable length records by utilizing high performance block storage metadata

MCDATA CORP

In-band method and apparatus for reporting operational statistics relative to the ports of a fibre channel switch

BRICE JR FRANK WILLIAM

Authenticating a processing system accessing a resource

BRICE FRANK WILLIAM

Authenticating a processing system accessing a resource via a resource alias address

KALOS MATTHEW JOSEPH

Verifying a record as part of an operation to modify the record

YUDENFRIEND HARRY MORRIS

System and article of manufacture for providing an address format compatible with different addressing formats used for addressing different sized address spaces