Patent ID: 9092398
Filing Date: 2015-07-28
Classification: G06F

Abstract:
1. A data storage switch, comprising: a master expander having a first firmware module operable to link a plurality of logical volumes to at least one initiator through a first plurality of physical transceivers; a slave expander having a second firmware module operable to link the plurality of logical volumes to the at least one initiator through a second plurality of physical transceivers, and a dual port memory communicatively coupled to the master expander and to the slave expander, wherein the slave expander is operable to detect, via the dual port memory, a firmware failure of the master expander to link at least a portion of the logical volumes to the at least one initiator, to load a copy of the second firmware module into the master expander, and to initiate the master expander to link the logical volumes to the at least one initiator through the first plurality of physical transceivers based on the copy of the second firmware module.