Storage subsystem and information processing system

Details Storage subsystem and information processing system Storage subsystem and information processing system

2007-07-17

2007-07-17

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S005110, C714S006130, C714S006130, C714S042000, C714S043000, C709S251000

Reexamination Certificate

active

10911125

ABSTRACT:
According to the invention, techniques for detecting and recovering from errors occurring in disk drive subsystems having a controller and drive units connected by a fibre channel loop. Specific embodiments can provide storage subsystems, methods and apparatus for use in information processing environments, for example. Embodiments can determine when each drive is disconnected from the loop in the external storage subsystem structured by using the FC Loop, and thereupon, the FC Loop can be controlled by bridging the communication path using the PBC so that the loop is not broken.

REFERENCES:
patent: 5768551 (1998-06-01), Bleiweiss et al.
patent: 6032271 (2000-02-01), Goodrum et al.
patent: 6260079 (2001-07-01), White
patent: 6430714 (2002-08-01), McAdam et al.
patent: 6571355 (2003-05-01), Linnell
patent: 6678839 (2004-01-01), Mori
patent: 2001-216206 (2001-08-01), None
Japan Patent Office (JPO) office action dated Jan. 16, 2007 for JPO application JP2000-032873.

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