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Method to Isolate and Fence a Single Port on a Multi-Port Adapter

IP.com Disclosure Number: IPCOM000035330D
Original Publication Date: 2005-Jan-20
Included in the Prior Art Database: 2005-Jan-20

Publishing Venue

IBM

Abstract

On a multi-port I/O adapter, it is necessary to handle severe errors that are related to a single port, and be able to fence that port. This fencing of a port must allow operation to resume or continue on other ports of the adapter without noticeably affecting ongoing operations. Hardware associated with the fenced port must be reset and isolated from continued operations on other ports sharing the same adapter.