| 摘要 |
Systems and methods for fault handling are presented. In one embodiment, a fault handling method includes: performing an error type detection process including determining if an error is a media error or a connectivity error; performing a detachment determination process to establish an appropriate detachment scenario, wherein the appropriate detachment scenario includes not detaching any mirrors if the connectivity error involves all mirrors; and returning an application write with a failure. In one embodiment, the detachment determination process detaches a mirror in accordance with results of a read-write-back process. In one exemplary implementation, the detachment determination process includes a connectivity status inquiry and mirrors are detached in accordance with results of the connectivity status inquiry. In one exemplary implementation, the connectivity status inquiry includes a SCSI connectivity inquiry. In one embodiment, consistency and synchronization is maintained between the mirrors by utilizing a read-write-back operation. |
