Patent ID: 9026843
Filing Date: 2015-05-05
Classification: G06F,H04L

Abstract:
1. A Serial Attached Small Computer System Interface domain, comprising: a first Serial Attached Small Computer System Interface expander coupled to an initiator; and a second Serial Attached Small Computer System Interface expander coupled to the first expander and to a target device, and operable to connect the target device to the initiator through the first expander, wherein the first expander is operable to detect a failure of the initiator, and to indicate a change in the domain to the second expander, and wherein the second expander is operable to detect an increase in arbitration wait time for a connection between the initiator and the target device, to determine a race condition exists in the second expander, to deny the connection between the initiator and the target device based on the increased arbitration wait time, to direct the target device to wait for another connection, to perform a discovery of the domain based on the change to the domain, and to prevent a subsequent connection by the target device to the failed initiator after discovery completes.