OPTIMIZED REDUNDANT HIGH AVAILABILITY SAS TOPOLOGY

摘要

For optimizing redundant high availability serial attached SCSI storage (SAS) topology by providing multiple paths to a same SAS target through a single SAS port on a base unit in a computing environment, the SAS port of a raid controller is attached to one of a multiplicity of just a bunch of disks (JBOD) expansion units having SAS expanders using an SAS cable for providing limited hardware footprint. Load balancing is provided between the base unit and each of the SAS expanders by converting the single SAS port into both dual and redundant paths using the SAS cable.