Method, system, and program for maintaining and swapping paths in an MPIO environment
Patent 6968401 Issued on November 22, 2005. Estimated Expiration Date: 
June 26, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 26, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethods and apparatus for seamless firmware update and propagation in a dual raid controller system Patent #: 6675258 InventorsApplicationNo. 10607516 filed on 06/26/2003US Classes:710/38, Path selection710/74, For data storage device711/114, Arrayed (e.g., RAIDs)714/712, Transmission facility testing710/1, INPUT/OUTPUT DATA PROCESSING719/321DEVICE DRIVER COMMUNICATIONExaminersPrimary: Huynh, KimAssistant: Kim, Harold Attorney, Agent or FirmInternational ClassG06F003/00AbstractA path control module manages a set of primary paths and a set of standby paths for a target device. When a path in the set of primary paths fails, the path control module may failover to the set of standby paths. Alternatively, when a path in the set of primary paths fails, the path control module may failover that path to a single path from the set of standby paths. The sets of primary paths and standby paths may be set by an administrator to control load balancing of resources in the storage area network. The primary set of paths for a first disk may be the standby set of paths for a second disk. Similarly, the primary set of paths for the second disk may be the standby set of paths for the first disk.Other References
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