Systems and methods for handling path failures to...

Details Systems and methods for handling path failures to... Systems and methods for handling path failures to...

2009-10-29

2011-12-06

Ehne, Charles (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S004100, C714S004110, C714S004200, C714S043000, C714S048000

Reexamination Certificate

active

08074101

ABSTRACT:
A computer-implemented method for handling path failures to active-passive storage arrays may include identifying a host system with multiple I/O paths to an active-passive storage array. The computer-implemented method may also include identifying a backup system operating for the host system, the backup system having multiple I/O paths to the active-passive storage array. The computer-implemented method may also include disabling at least one secondary path from the backup system to the active-passive storage array. The computer-implemented method may further include detecting a path failure. The computer-implemented method may additionally include reconfiguring the backup system to access the active-passive storage array through the host system. Various other methods, systems, and computer-readable media are also disclosed.

REFERENCES:
patent: 7272674 (2007-09-01), Nandi et al.
patent: 7318138 (2008-01-01), Usgaonkar et al.
patent: 7401251 (2008-07-01), Haynes et al.
patent: 7694063 (2010-04-01), Nandi et al.
patent: 7778157 (2010-08-01), Tawri et al.

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