Patent Number: 6,338,145

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

Abstract: Error recovery is performed when an error rate for a subsystem of a computer environment (e.g., an Input/Output (I/O) subsystem) is greater than a predefined value and a critical resource of the computer environment (e.g., storage) is experiencing a shortage. Error recovery may include slowing down activity of the devices associated with the subsystem and/or simulating errors for the subsystem. The simulation of the errors does not require a large block of additional storage, and thus, the shortage situation is not exacerbated.

Inventors: Yudenfriend; Harry Morris (Poughkeepsie, NY), Staubi; John Andrew (Poughkeepsie, NY), Fitzpatrick; Michael G. (Raleigh, NC)

Assignee: International Business Machines Corporation

International Classification: H02H 3/05 (20060101); H03K 19/003 (20060101); H02H 003/05 (); H03K 019/003 ()

Expiration Date: 01/08/2019