STORAGE SYSTEM ISOLATING FAULT SECTION, PROGRAM ISOLATING FAULT SECTION, AND ITS METHOD

摘要

PPROBLEM TO BE SOLVED: To solve the problem that it is required to carry out diagnosis operation on a drive without disrupting access to the rest of a disc array or to a network. PSOLUTION: The storage system includes a RAID adapter, a disc array switch, a sub-processor, and a hard disc drive (HDD). The system can isolate a suspected faulty HDD to allow diagnostic to be carried out without impacting operation of the rest of the system. If a possible fault is detected in a target HDD, a private zone including one of the object HDD or the sub-processor is established, and the target HDD is isolated. After carrying out diagnostic operation of the sub-processor, its result is sent to the adapter. In such manner, a faulty HDD can be completely isolated, and when the private zone is disassembled, the sub-processor can join the network. PCOPYRIGHT: (C)2008,JPO&INPIT