Inventor

YUDENFRIEND HARRY M

US208 patents

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

YUDENFRIEND HARRY M

IBM

Emulation of extended input/output measurement block facilities

Extended input/output measurement facilities

Processing of data to suspend operations in an input/output processing system

Processing of data to suspend operations in an input/output processing log-out system

Managing access, by operating system images of a computing environment, of input/output resources of the computing environment

Method, system and program products for enhancing input/output processing for operating system images of a computing environment

Processing channel subsystem pending I/O work queues based on priorities

Dynamically changing a system i/o configuration definition

System and method for concurrent logical device swapping

Obtaining extended queue measurement data for a range of logical control unit queues

Extended input/output measurement block

Gathering I/O measurement data during an I/O operation process

Measuring utilization of individual components of channels

Method, system and program products for determining whether I/O constraints exist for controllers of a computing environment

Communications between partitions within a logically partitioned computer

System for repositioning an I/O device to a predetermined position to retry a program without knowledge of which part of the program caused the retry

Method for identifying a system holding a `Reserve`

Establishing and restoring paths in a data processing I/O system

Method and apparatus for performing control unit level recovery operations

Method and means for limiting duration of input/output (I/O) requests

Method and means for enabling virtual addressing control by software users over a hardware page transfer control entity

Synchronous input/output using a low latency storage controller connection

Establishing synchronization of hardware and software I/O configuration definitions

Resource allocation for a storage area network

Low overhead I/O interrupt

Method and apparatus for assigning resources to logical partition clusters

Method and system for managing an operating system definition of a dynamically modifiable i/o configuration

Store storage class memory information command

Multiple logical input/output subsystem facility

Method, system and program products for managing I/O configurations of a computing environment

Managing sets of input/output communications subadapters of an input/output subsystem

Managing configurations of input/output system images of an input/output subsystem, wherein a configuration is modified without restarting the input/output subsystem to effect a modification

Dynamic management of addresses to an input/output (I/O) device

System for dynamically changing a system I/O configuration by determining differences between current and future configurations and describing differences to software and hardware control blocks

Method and system for detecting and recovering from switching errors

Sharing communications adapters across a plurality of input/output subsystem images

Method, system and program products for identifying communications adapters of a computing environment

Program products for repositioning an input/output device without knowledge of current positioning of the device

System and method for automatic dynamic address switching

Resource allocation for a storage area network

Mirroring write operations across data storage devices

Synchronous input/output diagnostic controls

Synchronous input/output diagnostic controls

Synchronous input/output commands writing to multiple targets

Isolating the sources of faults/potential faults within computing networks

Management of allocation for alias devices

Data returned responsive to executing a start subchannel instruction

Chaining move specification blocks

Using extended asynchronous data mover indirect data address words

DRIEVER PETER D

Configure storage class memory command