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Server Controls Delayed Reset Host Adapters

IP.com Disclosure Number: IPCOM000032610D
Original Publication Date: 2004-Nov-09
Included in the Prior Art Database: 2004-Nov-09

Publishing Venue

IBM

Abstract

A program is disclosed to enhance the error recovery procedure of a failed adapter. The invention involves the server microcode and the adapter microcode. During the error recovery procedure, if a server decides to reset an adapter, it notifies the specific adapter ahead of time (Delayed Reset). This allows the adapter to gracefully shut off all input/output activities as and to allow the adapter to gather any important debugging information, and to prepare itself to be reset later by the server. The server data then will be safe, and the adapter data will be preserved for further analysis.