Patent ID: 7155636
Filing Date: 2006-12-26
Classification: G11B

Abstract:
1. A fault detecting method on a data path between two disk storage devices among a plurality of disk storage devices interconnected through a communication line, comprising: obtaining a selected fault detection test from a group of tests comprising a first fault detection test, a second fault detection test, and a third fault detection test; performing data transfer operations over a data path between a first disk storage device and a second disk storage device in accordance with said selected fault detection test; detecting a fault in said data path based on a result of said data transfer; signaling an indication of said fault in order to initiate a repair action; and resuming normal data transfer by using said data path at a time subsequent to said repair actions, wherein said first fault detection test comprises steps of: wherein said second fault detection test comprises steps of: wherein said first and second disk storage devices each comprises a plurality of disk drives and said third fault detection test comprises steps of: