Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2011-08-09
2011-08-09
Baderman, Scott T (Department: 2114)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
Reexamination Certificate
active
07996707
ABSTRACT:
A system and method for recovering from a single logical path failure. More specifically, although a host has not grouped its logical paths, the host knows which logical paths it has available. When a host detects a logical path failure, the host enters a path discovery mode of operation. If the host continues to detect a logical path failure while operating in the logical path discovery mode of operation, the host removes the logical path from a logical path mask, and the host does not use the removed logical path again. In the case of ungrouped logical paths, the host aborts its process because it does not have more paths available to continue its process. Additionally, in certain embodiments, a pseudo path group for ungrouped logical paths is created.
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Coronado Juan A.
Hathorn Roger G.
Holley Bret W.
Le Dinh H.
Perkin Daniel J.
Baderman Scott T
Hamilton & Terrile LLP
International Business Machines - Corporation
Leibovich Yair
Terrile Stephen A.
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