System and method for multipath I/O support for fibre...

Details System and method for multipath I/O support for fibre... System and method for multipath I/O support for fibre...

2011-03-15

2011-03-15

McCarthy, Christopher S (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S056000

Reexamination Certificate

active

07908523

ABSTRACT:
A system and method enables a file server, to support multi path input/output operations for Fibre Channel devices. Upon each Fibre Channel Arbitrated Loop initialization event generated, the system and method updates a path and device instance to track multiple paths to a given device. While the file server is attempting input/output operations, the failure of a given path can be corrected by the use of another path associated with a given device. The data structures generated by the low levels of the storage operating system are exposed for use by upper level services for routing a storage device identification purposes.

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