Patent ID: 8069285
Filing Date: 2011-11-29
Classification: G06F

Abstract:
1. A method for improving communication throughput of a link between Serial Attached SCSI (SAS) / Serial ATA (SATA) devices, wherein at least one counter is associated with the link, the method comprising: establishing the link at a first signal rate; incrementing one of the at least one counter based on an error sensed on the link; determining, based on the at least one counter, whether to maintain the first signal rate; re-establishing the link at a second signal rate based on the determination; wherein the second signal rate is lower than the first signal rate; and wherein the link is one of a SATA link and a SAS link; resetting at least one of the at least one counter; incrementing one of the at least one counter based on another error sensed on the link; determining that the lower signal rate encounters a similar amount of errors as the first signal rate, based on the least one counter; and re-establishing the link at the first signal rate based on the determination.