Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2005-10-11
2005-10-11
Iqbal, Nadeem (Department: 2114)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S044000
Reexamination Certificate
active
06954881
ABSTRACT:
A method and apparatus for providing multi-path I/O in non-concurrent clustering environment is disclosed. Shared non-concurrent access to logical volumes through multiple paths is provided by using SCSI-3 persistent reserve commands. Open options of the operating system are mapped to SCSI persistent reserve commands to allow all of the multiple paths to register with the logical unit number of the shared storage system and to allow the second of the multiple paths to access the logical unit number of the shared storage system after obtaining a persistent reservation with the shared storage system.
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Flynn Jr. John T.
Johnson Richard H.
Shaw Limei M.
Bonura Timothy M.
Crawford & Maunu PLLC
International Business Machines - Corporation
Iqbal Nadeem
LandOfFree
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