Method and system for resolving SAS timing issues for long-distance SAS extender

摘要

This invention extends the distance at which a SAS extender can function. The distance is increased a large amount over the traditional 10 meters. As a result timers will not go off before the response can make a trip back. This is accomplished by emulating as a SAS expander, using SAS AIP's (Arbitration In Progress), and using a lookup table to determine which SAS events must be responded to immediately and which ones to be passed on to the remote link.