Patent Document ID: 7921336
Application ID: 12038413
Patent Flag: 1

Claim One:
1. A method for being performed by expander logic to categorize potential error events associated with a storage device as actual error events and non-error events based on a physical layer signal state change associated with the storage device, comprising: identifying a potential error event in association with at least one of a storage device and a link to a storage device; identifying a physical layer signal state change in association with the at least one of the storage device and the link to the storage device; determining if the potential error event occurred within a predetermined time of the physical layer signal state change for categorizing the potential error event as an actual error event or a non-error event, the predetermined time being stored in memory; if it is determined that the potential error event occurred within the predetermined time of the physical layer signal state change, categorizing the potential error event as the non-error event; if it is determined that the potential error event did not occur within the predetermined time of the physical layer signal state change, categorizing the potential error event as the actual error event; and outputting a result of the categorization; wherein determining if the potential error event occurred within the predetermined time of the physical layer signal state change includes comparing a first timestamp associated with the potential error event and a second timestamp associated with the physical layer signal state change, for determining a difference, and further comparing the difference to the predetermined time.